{ "document": { "category": "csaf_base", "csaf_version": "2.0", "distribution": { "tlp": { "label": "WHITE" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this portal to enhance access to its information and vulnerabilities. The use of this information is subject to the following terms and conditions:\n\nThe vulnerabilities disclosed in this portal are gathered by NCSC-NL from a variety of open sources, which the user can retrieve from other platforms. NCSC-NL makes every reasonable effort to ensure that the content of this portal is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or real-time keeping up-to-date. NCSC-NL does not control nor guarantee the accuracy, relevance, timeliness or completeness of information obtained from these external sources. The vulnerabilities disclosed in this portal are intended solely for the convenience of professional parties to take appropriate measures to manage the risks posed to the cybersecurity. No rights can be derived from the information provided therein.\n\nNCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of the vulnerabilities disclosed in this portal. This includes damage resulting from the inaccuracy of incompleteness of the information contained in it.\nThe information on this page is subject to Dutch law. All disputes related to or arising from the use of this portal regarding the disclosure of vulnerabilities will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings." } ], "publisher": { "category": "coordinator", "contact_details": "cert@ncsc.nl", "name": "National Cyber Security Centre", "namespace": "https://www.ncsc.nl/" }, "title": "CVE-2026-23239", "tracking": { "current_release_date": "2026-04-02T16:10:44.188796Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-23239", "initial_release_date": "2026-03-10T18:32:47.917418Z", "revision_history": [ { "date": "2026-03-10T18:32:47.917418Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| References created (4)." }, { "date": "2026-03-10T18:32:53.006320Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-03-10T18:38:59.154742Z", "number": "3", "summary": "Source created.| CVE status created. (valid)| Description created for source.| Products created (7).| Products connected (3).| References created (4)." }, { "date": "2026-03-10T18:39:02.810859Z", "number": "4", "summary": "NCSC Score updated." }, { "date": "2026-03-11T00:43:45.066792Z", "number": "5", "summary": "Source created.| CVE status created. (valid)| Products connected (2)." }, { "date": "2026-03-11T00:43:49.406262Z", "number": "6", "summary": "NCSC Score updated." }, { "date": "2026-03-11T06:44:04.941261Z", "number": "7", "summary": "Description created for source." }, { "date": "2026-03-11T10:15:30.197225Z", "number": "8", "summary": "Source created.| CVE status created. (valid)| Products created (4).| References created (5)." }, { "date": "2026-03-11T10:15:33.655339Z", "number": "9", "summary": "NCSC Score updated." }, { "date": "2026-03-11T12:27:58.286204Z", "number": "10", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (13).| Product Identifiers created (5).| References created (3).| Vendor_assessment created." }, { "date": "2026-03-11T12:28:03.204029Z", "number": "11", "summary": "NCSC Score updated." }, { "date": "2026-03-11T15:07:09.251493Z", "number": "12", "summary": "Source created.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-11T15:07:12.163227Z", "number": "13", "summary": "NCSC Score updated." }, { "date": "2026-03-12T12:20:08.885382Z", "number": "14", "summary": "Source connected.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (1)." }, { "date": "2026-03-12T12:20:15.077927Z", "number": "15", "summary": "NCSC Score updated." }, { "date": "2026-03-20T09:55:44.226585Z", "number": "16", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-20T09:55:46.481593Z", "number": "17", "summary": "NCSC Score updated." }, { "date": "2026-04-02T15:25:45.760905Z", "number": "18", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (4)." }, { "date": "2026-04-02T15:25:47.897313Z", "number": "19", "summary": "NCSC Score updated." }, { "date": "2026-04-02T15:41:26.105737Z", "number": "20", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (10).| References created (4)." } ], "status": "interim", "version": "20" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:git/e27cca96cd68fa2c6814c90f9a1cfd36bb68c593|<022ff7f347588de6e17879a1da6019647b21321b", "product": { "name": "vers:git/e27cca96cd68fa2c6814c90f9a1cfd36bb68c593|<022ff7f347588de6e17879a1da6019647b21321b", "product_id": "CSAFPID-5776389" } }, { "category": "product_version_range", "name": "vers:git/e27cca96cd68fa2c6814c90f9a1cfd36bb68c593|<664e9df53226b4505a0894817ecad2c610ab11d8", "product": { "name": "vers:git/e27cca96cd68fa2c6814c90f9a1cfd36bb68c593|<664e9df53226b4505a0894817ecad2c610ab11d8", "product_id": "CSAFPID-5776388" } }, { "category": "product_version_range", "name": "vers:git/e27cca96cd68fa2c6814c90f9a1cfd36bb68c593|work);\n espintcp_write_space()\n schedule_work(&ctx->work);\n\nTo prevent this race condition, cancel_work_sync() is\nreplaced with disable_work_sync().", "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-23239" }, { "category": "description", "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nespintcp: Fix race condition in espintcp_close()\n\nThis issue was discovered during a code audit.\n\nAfter cancel_work_sync() is called from espintcp_close(),\nespintcp_tx_work() can still be scheduled from paths such as\nthe Delayed ACK handler or ksoftirqd.\nAs a result, the espintcp_tx_work() worker may dereference a\nfreed espintcp ctx or sk.\n\nThe following is a simple race scenario:\n\n cpu0 cpu1\n\n espintcp_close()\n cancel_work_sync(&ctx->work);\n espintcp_write_space()\n schedule_work(&ctx->work);\n\nTo prevent this race condition, cancel_work_sync() is\nreplaced with disable_work_sync().", "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-23239" }, { "category": "description", "text": "In the Linux kernel, the following vulnerability has been resolved: espintcp: Fix race condition in espintcp_close() This issue was discovered during a code audit. After cancel_work_sync() is called from espintcp_close(), espintcp_tx_work() can still be scheduled from paths such as the Delayed ACK handler or ksoftirqd. As a result, the espintcp_tx_work() worker may dereference a freed espintcp ctx or sk. The following is a simple race scenario: cpu0 cpu1 espintcp_close() cancel_work_sync(&ctx->work); espintcp_write_space() schedule_work(&ctx->work); To prevent this race condition, cancel_work_sync() is replaced with disable_work_sync().", "title": "debian - https://security-tracker.debian.org/tracker/CVE-2026-23239" }, { "category": "description", "text": "No description is available for this CVE.", "title": "redhat - https://access.redhat.com/security/cve/CVE-2026-23239" }, { "category": "description", "text": "espintcp: Fix race condition in espintcp\\_close()", "title": "microsoft - https://api.msrc.microsoft.com/cvrf/v3.0/cvrf/2026-Mar" }, { "category": "description", "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nespintcp: Fix race condition in espintcp_close()\n\nThis issue was discovered during a code audit.\n\nAfter cancel_work_sync() is called from espintcp_close(),\nespintcp_tx_work() can still be scheduled from paths such as\nthe Delayed ACK handler or ksoftirqd.\nAs a result, the espintcp_tx_work() worker may dereference a\nfreed espintcp ctx or sk.\n\nThe following is a simple race scenario:\n\n cpu0 cpu1\n\n espintcp_close()\n cancel_work_sync(&ctx->work);\n espintcp_write_space()\n schedule_work(&ctx->work);\n\nTo prevent this race condition, cancel_work_sync() is\nreplaced with disable_work_sync().", "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-23239" }, { "category": "description", "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nespintcp: Fix race condition in espintcp_close()\n\nThis issue was discovered during a code audit.\n\nAfter cancel_work_sync() is called from espintcp_close(),\nespintcp_tx_work() can still be scheduled from paths such as\nthe Delayed ACK handler or ksoftirqd.\nAs a result, the espintcp_tx_work() worker may dereference a\nfreed espintcp ctx or sk.\n\nThe following is a simple race scenario:\n\n cpu0 cpu1\n\n espintcp_close()\n cancel_work_sync(&ctx->work);\n espintcp_write_space()\n schedule_work(&ctx->work);\n\nTo prevent this race condition, cancel_work_sync() is\nreplaced with disable_work_sync().", "title": "cveprojectv5 - https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/23xxx/CVE-2026-23239.json" }, { "category": "other", "text": "0.00023", "title": "EPSS" }, { "category": "other", "text": "3.2", "title": "NCSC Score" }, { "category": "other", "text": "The value of the most recent EPSS score, Is related to a product by vendor Linux, Is related to (a version of) product Linux Kernel, Is related to a product by vendor Open Source", "title": "NCSC Score top decreasing factors" }, { "category": "details", "text": "Severity: 3\n", "title": "Vendor assessment" } ], "product_status": { "known_affected": [ "CSAFPID-1305947", "CSAFPID-5776387", "CSAFPID-5776388", "CSAFPID-5776389", "CSAFPID-5776390", "CSAFPID-2036021", "CSAFPID-2036024", "CSAFPID-5794068", "CSAFPID-5794069", "CSAFPID-5794070", "CSAFPID-5794071", "CSAFPID-1439317", "CSAFPID-1439319", "CSAFPID-1453379", "CSAFPID-1453380", "CSAFPID-1453381", "CSAFPID-1453382", "CSAFPID-2858634", "CSAFPID-2858635", "CSAFPID-5761981" ], "known_not_affected": [ "CSAFPID-1305948", "CSAFPID-5758112", "CSAFPID-5776391", "CSAFPID-5776392", "CSAFPID-5776393", "CSAFPID-1439315", "CSAFPID-1439321", "CSAFPID-1453376", "CSAFPID-1453377", "CSAFPID-1453378" ] }, "references": [ { "category": "external", "summary": "Source - nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23239" }, { "category": "external", "summary": "Source raw - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-23239" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://www.cve.org/CVERecord?id=CVE-2026-23239" }, { "category": "external", "summary": "Source raw - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/23xxx/CVE-2026-23239.json" }, { "category": "external", "summary": "Source - debian", "url": "https://security-tracker.debian.org/tracker/CVE-2026-23239" }, { "category": "external", "summary": "Source - certbundde", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0680.json" }, { "category": "external", "summary": "Source - redhat", "url": "https://access.redhat.com/security/cve/CVE-2026-23239" }, { "category": "external", "summary": "Source raw - redhat", "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-23239.json" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-23239" }, { "category": "external", "summary": "Source raw - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Source - microsoft", "url": "https://api.msrc.microsoft.com/cvrf/v3.0/cvrf/2026-Mar" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Source - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-23239" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/23xxx/CVE-2026-23239.json" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd", "url": "https://git.kernel.org/stable/c/022ff7f347588de6e17879a1da6019647b21321b" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd", "url": "https://git.kernel.org/stable/c/664e9df53226b4505a0894817ecad2c610ab11d8" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd", "url": "https://git.kernel.org/stable/c/e1512c1db9e8794d8d130addd2615ec27231d994" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd", "url": "https://git.kernel.org/stable/c/f7ad8b1d0e421c524604d5076b73232093490d5c" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0680.json" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0680" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026031031-CVE-2026-23239-1fc9@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026031034-CVE-2026-23240-2531@gregkh/" }, { "category": "external", "summary": "Reference - redhat", "url": "https://www.cve.org/CVERecord?id=CVE-2026-23239" }, { "category": "external", "summary": "Reference - redhat", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23239" }, { "category": "external", "summary": "Reference - redhat", "url": "https://lore.kernel.org/linux-cve-announce/2026031031-CVE-2026-23239-1fc9@gregkh/T" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH" }, "products": [ "CSAFPID-1305947", "CSAFPID-1439317", "CSAFPID-1439319", "CSAFPID-1453379", "CSAFPID-1453380", "CSAFPID-1453381", "CSAFPID-1453382", "CSAFPID-2036021", "CSAFPID-2036024", "CSAFPID-2858634", "CSAFPID-2858635", "CSAFPID-5761981", "CSAFPID-5776387", "CSAFPID-5776388", "CSAFPID-5776389", "CSAFPID-5776390", "CSAFPID-5794068", "CSAFPID-5794069", "CSAFPID-5794070", "CSAFPID-5794071" ] } ], "title": "CVE-2026-23239" } ] }