7.8

CVE-2022-49950: misc: fastrpc: fix memory corruption on open

Modified
AliasesUBUNTU-CVE-2022-49950DEBIAN-CVE-2022-49950
Published 18-06-2025Last modified 05-08-2026

Vulnerability summary

CVE-2022-49950 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in linux. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 16.5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.25%
0%100%
Low · +0.01 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 6 · Related 6
SUSE-SU-2025:02264-1SUSE-SU-2025:02308-1SUSE-SU-2025:02320-1SUSE-SU-2025:02321-1SUSE-SU-2025:02322-1SUSE-SU-2025:02537-1

Timeline

  1. 18-06-2025
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: fix memory corruption on open The probe session-duplication overflow check incremented the session count also when there were no more available sessions so that memory beyond the fixed-size slab-allocated session array could be corrupted in fastrpc_session_alloc() on open().

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.25%

Chance of exploitation in the next 30 days

Percentile

17%

Versus all other CVEs

30-day change

Increase +0.01 pp

From 0.24% 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, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu107 products
  • linux< 5.4.0-136.153 | < 5.15.0-57.63
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.4.0-1093.101 | < 5.15.0-1027.31
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ f6f9279f2bf0e37e2f1fb119d8832b8568536a04, < f8632b8bb53ebc005d8f24a68a0c1f9678c0e908 | ≥ f6f9279f2bf0e37e2f1fb119d8832b8568536a04, < 5cf2a57c7a01a0d7bdecf875a63682f542891b1b | ≥ f6f9279f2bf0e37e2f1fb119d8832b8568536a04, < cf20c3533efc89578ace94fa20a9e63446223c72 | ≥ f6f9279f2bf0e37e2f1fb119d8832b8568536a04, < e0578e603065f120a8759b75e0d6c216c7078a39 | ≥ f6f9279f2bf0e37e2f1fb119d8832b8568536a04, < d245f43aab2b61195d8ebb64cef7b5a08c590ab4 | 5.1
  • linux_kernel≥ 5.1, < 5.4.213 | ≥ 5.5, < 5.10.142 | ≥ 5.11, < 5.15.66 | ≥ 5.16, < 5.19.8 | 6.0:rc1 | 6.0:rc2 | 6.0:rc3
Debian1 product
  • linux< 6.0.2-1

3 vendors · 110 products

References

8 links