8.8

CVE-2022-28289: mozilla firefox Out-of-bounds Write

Modified
AliasesUBUNTU-CVE-2022-28289DEBIAN-CVE-2022-28289ALPINE-CVE-2022-28289
Published 22-12-2022Last modified 16-04-2025

Vulnerability summary

CVE-2022-28289 is a high (CVSS 8.8) Out-of-bounds Write vulnerability in mozilla firefox. EPSS estimates a 0.74% chance of exploitation in the next 30 days, higher than 54.5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 8.8, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.74%
0%100%
Low · +0.02 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 26 · Related 10
DLA-2971-1DLA-2978-1DSA-5113-1DSA-5118-1MGASA-2022-0156MGASA-2022-0157

Timeline

  1. 22-12-2022
    PublishedVulnerability first disclosed.
  2. 16-04-2025
    Last modifiedVulnerability information updated.

Description

Mozilla developers and community members Nika Layzell, Andrew McCreight, Gabriele Svelto, and the Mozilla Fuzzing Team reported memory safety bugs present in Thunderbird 91.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 91.8, Firefox < 99, and Firefox ESR < 91.8.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.74%

Chance of exploitation in the next 30 days

Percentile

55%

Versus all other CVEs

30-day change

Increase +0.02 pp

From 0.72% 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: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu7 products
  • firefox< 99.0+build2-0ubuntu0.18.04.2 | < 99.0+build2-0ubuntu0.20.04.2 | < 1:1snap1-0ubuntu1
  • mozjs38All versions (No fix recorded)
  • mozjs52All versions (No fix recorded)
  • mozjs68All versions (No fix recorded)
  • mozjs78All versions (No fix recorded)
Alpine4 products
  • firefox< 99.0-r0
  • firefox-esr< 91.8.0-r0
  • librewolf< 99.0-r0
  • thunderbird< 91.8.0-r0
Mozilla3 products
Debian2 products
  • firefox-esr< 91.8.0esr-1
  • thunderbird< 1:91.8.0-1

4 vendors · 16 products

References

13 links
Show all 13 references