CVE-2026-31739
Linux Tegra crypto driver fix; CRYPTO_ALG_ASYNC flag added to prevent crashes.
Is CVE-2026-31739 being exploited?
Not confirmed. CVE-2026-31739 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.41% probability of exploitation in the next 30 days.
How severe is CVE-2026-31739?
CVE-2026-31739 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-31739?
Yes. A fix has been recorded for CVE-2026-31739. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-31739 affect?
CVE-2026-31739 affects Linux kernel (TEGRA crypto driver). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-31739?
Patch kernel with Tegra crypto fix.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Local crash/DoS via kernel crypto API when sync requests are used.
Patch when possible
- affected>= 0880bb3b00c855fc244b7177ffdaafef4d0aa1e0 and < bdbf027a4504b4a86740de6beb6d18a957331839
- affected>= 0880bb3b00c855fc244b7177ffdaafef4d0aa1e0 and < 3aea268b6d5cde3b087df9eeecc3bc620aa09513
- affected>= 0880bb3b00c855fc244b7177ffdaafef4d0aa1e0 and < 429d05565eb19ee545d8a8395991372adbe4daf3
- affected>= 0880bb3b00c855fc244b7177ffdaafef4d0aa1e0 and < 4b56770d345524fc2acc143a2b85539cf7d74bc1
- affected6.10
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.