7.8

CVE-2026-31506: linux Double Free

CVSS: 7.8v3.1HighModified
AliasesUBUNTU-CVE-2026-31506DEBIAN-CVE-2026-31506
Published 22-04-2026Last modified 21-10-2026
Open JSON

Vulnerability summary

CVE-2026-31506 is a high (CVSS 7.8) Double Free vulnerability in linux. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 6.6% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.18%
0%100%
Low · +0.05 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 11 · Related 11
USN-8567-1USN-8574-1USN-8574-2USN-8574-3USN-8596-1USN-8606-1

Timeline

  1. 22-04-2026
    PublishedVulnerability first disclosed.
  2. 21-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: net: bcmasp: fix double free of WoL irq We do not need to free wol_irq since it was instantiated with devm_request_irq(). So devres will free for us.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.18%

Chance of exploitation in the next 30 days

Percentile

7%

Versus all other CVEs

30-day change

+0.05 pp

From 0.13% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.18%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu130 products
  • linux< 6.8.0-136.136 | All versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ a2f0751206b03374f6d02f89c18a60f1bb238fea, < c5e2de193831ab9610a1ca542507f75d126f09b5 | ≥ a2f0751206b03374f6d02f89c18a60f1bb238fea, < 121a6ad9cd42ba3bfc57deae93e3326515c2afe1 | ≥ a2f0751206b03374f6d02f89c18a60f1bb238fea, < 9e5f5c07cc7d66522f8c9676c28605eba5d4a20e | ≥ a2f0751206b03374f6d02f89c18a60f1bb238fea, < 8a30509ce6a29bdf18e0802383c524a7b2357ec0 | ≥ a2f0751206b03374f6d02f89c18a60f1bb238fea, < cbfa5be2bf64511d49b854a0f9fd6d0b5118621f | 6.6
  • linux_kernel≥ 6.6.1, < 6.12.80 | ≥ 6.13, < 6.18.21 | ≥ 6.19, < 6.19.11 | 6.6 | 7.0:rc1 | 7.0:rc2 | 7.0:rc3 | 7.0:rc4 | 7.0:rc5 | 7.0:rc6 | 7.0:rc7
Debian1 product
  • linux< 6.12.85-1 | < 6.19.11-1

3 vendors · 133 products

References

20 links
Show all 20 references