8.4

CVE-2022-49451: firmware: arm_scmi: Fix list protocols enumeration in the base protocol

Modified
AliasesUBUNTU-CVE-2022-49451DEBIAN-CVE-2022-49451
Published 26-02-2025Last modified 05-08-2026

Vulnerability summary

CVE-2022-49451 is a high (CVSS 8.4) Integer Overflow or Wraparound vulnerability in linux. EPSS estimates a 0.30% chance of exploitation in the next 30 days, higher than 22.7% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 8.4, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
8.4/10
010
High · v3.1 (CVE.org)
EPSS score
0.30%
0%100%
Low · 0.00 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 8 · Related 6
RHSA-2022:8267RHSA-2023:2458SUSE-SU-2025:1027-1SUSE-SU-2025:1176-1SUSE-SU-2025:1183-1SUSE-SU-2025:1194-1

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: firmware: arm_scmi: Fix list protocols enumeration in the base protocol While enumerating protocols implemented by the SCMI platform using BASE_DISCOVER_LIST_PROTOCOLS, the number of returned protocols is currently validated in an improper way since the check employs a sum between unsigned integers that could overflow and cause the check itself to be silently bypassed if the returned value 'loop_num_ret' is big enough. Fix the validation avoiding the addition.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.30%

Chance of exploitation in the next 30 days

Percentile

23%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.30% on 04-10-2026

04-10-202603-11-2026

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

Affected systems

Version check

Known conditions: local access, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu107 products
  • linux< 5.4.0-126.142 | < 5.15.0-47.51
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.4.0-1085.92 | < 5.15.0-1019.23
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ b6f20ff8bd94ad34032804a60bab5ee56752007e, < 444a2d27fe9867d0da4b28fc45b793f32e099ab8 | ≥ b6f20ff8bd94ad34032804a60bab5ee56752007e, < b0e4bafac8963c2d85ee18d3d01f393735acceec | ≥ b6f20ff8bd94ad34032804a60bab5ee56752007e, < 1052f22e127d0c34c3387bb389424ba1c61491ff | ≥ b6f20ff8bd94ad34032804a60bab5ee56752007e, < 98342148a8cd242855d7e257f298c966c96dba9f | ≥ b6f20ff8bd94ad34032804a60bab5ee56752007e, < 6e7978695f4a6cbd83616b5a702b77fa2087b247 | ≥ b6f20ff8bd94ad34032804a60bab5ee56752007e, < 2ccfcd7a09c826516edcfe464b05071961aada3f | ≥ b6f20ff8bd94ad34032804a60bab5ee56752007e, < 8009120e0354a67068e920eb10dce532391361d0 | 4.17
  • linux_kernel≥ 4.17, < 4.19.247 | ≥ 4.20, < 5.4.198 | ≥ 5.5, < 5.10.121 | ≥ 5.11, < 5.15.46 | ≥ 5.16, < 5.17.14 | ≥ 5.18, < 5.18.3
Debian1 product
  • linux< 5.18.5-1

3 vendors · 110 products

References

11 links
Show all 11 references