CVE-2025-39964
high · 7.8Actively exploitedOn the CISA Known Exploited Vulnerabilities catalog
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
In the Linux kernel, the following vulnerability has been resolved: crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg Issuing two writes to the same af_alg socket is bogus as the data will be interleaved in an unpredictable fashion. Furthermore, concurrent writes may create inconsistencies in the internal socket state. Disallow this by adding a new ctx->write field that indiciates exclusive ownership for writing.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| linux | linux_kernel | >= 2.6.38, < 5.10.245 |
| linux | linux_kernel | >= 5.11, < 5.15.194 |
| linux | linux_kernel | >= 5.16, < 6.1.154 |
| linux | linux_kernel | >= 6.2, < 6.6.108 |
| linux | linux_kernel | >= 6.7, < 6.12.49 |
| linux | linux_kernel | >= 6.13, < 6.16.9 |
| linux | linux_kernel | 6.17 |
| linux | linux_kernel | 6.17 |
| linux | linux_kernel | 6.17 |
| linux | linux_kernel | 6.17 |
| linux | linux_kernel | 6.17 |
| linux | linux_kernel | 6.17 |
| siemens | simatic_s7-1500_cpu_1518-4_pn/dp_mfp_firmware | >= 3.1.6 |
| siemens | simatic_s7-1500_cpu_1518-4_pn/dp_mfp | all versions |
| siemens | simatic_s7-1500_cpu_1518f-4_pn/dp_mfp_firmware | >= 3.1.6 |
| siemens | simatic_s7-1500_cpu_1518f-4_pn/dp_mfp | all versions |
Check a specific version with /api/v1/cve/match.
References
- https://git.kernel.org/stable/c/0f28c4adbc4a97437874c9b669fd7958a8c6d6ce
- https://git.kernel.org/stable/c/1b34cbbf4f011a121ef7b2d7d6e6920a036d5285
- https://git.kernel.org/stable/c/1f323a48e9b5ebfe6dc7d130fdf5c3c0e92a07c8
- https://git.kernel.org/stable/c/45bcf60fe49b37daab1acee57b27211ad1574042
- https://git.kernel.org/stable/c/7c4491b5644e3a3708f3dbd7591be0a570135b84
- https://git.kernel.org/stable/c/9aee87da5572b3a14075f501752e209801160d3d
- https://git.kernel.org/stable/c/e4c1ec11132ec466f7362a95f36a506ce4dc08c9
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-39964
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2025-39964