CVE-2026-74455: can: peak_usb: validate uCAN receive record lengths

Received
AliasesUBUNTU-CVE-2026-74455DEBIAN-CVE-2026-74455
Published 15-08-2026Last modified 19-08-2026

Vulnerability summary

CVE-2026-74455 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 7.2% of scored vulnerabilities.

Priority
Insufficient evidence

No CVSS vector published; no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.18%
0%100%
Low · -0.04 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 10 · Related 9
SUSE-SU-2026:5091-1USN-8875-1USN-8875-2USN-8876-1USN-8877-1USN-8878-1

Timeline

  1. 15-08-2026
    PublishedVulnerability first disclosed.
  2. 19-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: can: peak_usb: validate uCAN receive record lengths pcan_usb_fd_decode_buf() walks uCAN records packed in one USB receive buffer. Require each record to contain the fixed header for its type, and verify CAN payload bytes before copying them into the skb.

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.18%

Chance of exploitation in the next 30 days

Percentile

7%

Versus all other CVEs

30-day change

Decrease -0.04 pp

From 0.22% on 06-10-2026

06-10-202605-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: not stated in public data.

Ubuntu169 products
  • linuxAll versions (No fix recorded) | < 5.15.0-198.208 | < 7.0.0-42.42
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1117.124 | < 7.0.0-1016.17
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linux< 6.1.187-1 | < 6.12.105-1 | < 7.1.8-1
  • linux-6.12< 6.12.107-1~deb12u1
Linux1 product
  • linux≥ 0a25e1f4f18566b750ebd3ae995af64e23111e63, < 276d989cd2dd88e2b7ab2c96fd10c86836b12781 | ≥ 0a25e1f4f18566b750ebd3ae995af64e23111e63, < bf9d787b7e1ef59be19b35abca08194772deb97e | ≥ 0a25e1f4f18566b750ebd3ae995af64e23111e63, < 89c92a8052698dbbd3652a77c04d02bbd74a3275 | ≥ 0a25e1f4f18566b750ebd3ae995af64e23111e63, < 6067c878e38d02a3d5c43497347e143f85c9064a | ≥ 0a25e1f4f18566b750ebd3ae995af64e23111e63, < 2c8f08f3641a074da40acf05baa5a18ae2739260 | ≥ 0a25e1f4f18566b750ebd3ae995af64e23111e63, < 2427ef427bdd78d862c7c76597bfd9eda88b81f1 | ≥ 0a25e1f4f18566b750ebd3ae995af64e23111e63, < d9c115948c3dd5fcc2d0245cec5eb76c098503c8 | ≥ 0a25e1f4f18566b750ebd3ae995af64e23111e63, < 93fcab2c6968446316bbb49548848df604d6346f | 4.0

3 vendors · 172 products

References

21 links
Show all 21 references