7.8

CVE-2022-49563: linux Integer Underflow (Wrap or Wraparound)

CVSS: 7.8v3.1HighModified
AliasesUBUNTU-CVE-2022-49563DEBIAN-CVE-2022-49563
Published 26-02-2025Last modified 05-08-2026
Open JSON

Vulnerability summary

CVE-2022-49563 is a high (CVSS 7.8) Integer Underflow (Wrap or Wraparound) vulnerability in linux. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 20.2% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.29%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 23 · Related 23
SUSE-SU-2025:01907-1SUSE-SU-2025:01908-1SUSE-SU-2025:01956-1SUSE-SU-2025:01958-1SUSE-SU-2025:1027-1SUSE-SU-2025:1176-1

Timeline

  1. 26-02-2025
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: qat - add param check for RSA Reject requests with a source buffer that is bigger than the size of the key. This is to prevent a possible integer underflow that might happen when copying the source scatterlist into a linear buffer.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.29%

Chance of exploitation in the next 30 days

Percentile

20%

Versus all other CVEs

30-day change

0.00 pp

From 0.29% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.29%

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

Ubuntu112 products
  • linuxAll versions (No fix recorded) | < 5.15.0-50.56
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1021.25
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ a990532023b903b10cf14736241cdd138e4bc92c, < 4d6d2adce08788b7667a6e58002682ea1bbf6a79 | ≥ a990532023b903b10cf14736241cdd138e4bc92c, < f993321e50ba7a8ba4f5b19939e1772a921a1c42 | ≥ a990532023b903b10cf14736241cdd138e4bc92c, < 9714061423b8b24b8afb31b8eb4df977c63f19c4 | 4.3
  • linux_kernel< 5.15.58 | ≥ 5.16, < 5.18.15
Debian1 product
  • linux< 5.18.16-1

3 vendors · 115 products

References

7 links