HOMEVULNERABILITIESCVE-2026-31739
HIGH

CVE-2026-31739

Published: May 1, 2026· Updated: May 7, 2026

8.8
CVSS v3.1
EPSS:0.04%probability of exploitation in 30 daysPercentile:13.0th

Official Description

In the Linux kernel, the following vulnerability has been resolved:

crypto: tegra - Add missing CRYPTO_ALG_ASYNC

The tegra crypto driver failed to set the CRYPTO_ALG_ASYNC on its

asynchronous algorithms, causing the crypto API to select them for users

that request only synchronous algorithms. This causes crashes (at

least). Fix this by adding the flag like what the other drivers do.

Also remove the unnecessary CRYPTO_ALG_TYPE_* flags, since those just

get ignored and overridden by the registration function anyway.

NVD Source

Technical Analysis

CVE-2026-31739 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Linux1 product
linux kernel
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://git.kernel.org/stable/c/3aea268b6d5cde3b087df9eeecc3bc620aa09513
PATCHhttps://git.kernel.org/stable/c/429d05565eb19ee545d8a8395991372adbe4daf3
PATCHhttps://git.kernel.org/stable/c/4b56770d345524fc2acc143a2b85539cf7d74bc1
PATCHhttps://git.kernel.org/stable/c/bdbf027a4504b4a86740de6beb6d18a957331839

All References (4)

→
https://git.kernel.org/stable/c/3aea268b6d5cde3b087df9eeecc3bc620aa09513Patch
→
https://git.kernel.org/stable/c/429d05565eb19ee545d8a8395991372adbe4daf3Patch
→
https://git.kernel.org/stable/c/4b56770d345524fc2acc143a2b85539cf7d74bc1Patch
→
https://git.kernel.org/stable/c/bdbf027a4504b4a86740de6beb6d18a957331839Patch

Quick Facts

CVE IDCVE-2026-31739
CVSS Score8.8 / 10
SeverityHIGH
CISA KEVNo
EPSS (30d)0.04%
Affected1 vendor
PublishedMay 1, 2026

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-31739 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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