8.8

CVE-2022-34480: mozilla firefox Access of Uninitialized Pointer

CVSS: 8.8v3.1HighModified
AliasesUBUNTU-CVE-2022-34480
Published 22-12-2022Last modified 15-04-2025
Open JSON

Vulnerability summary

CVE-2022-34480 is a high (CVSS 8.8) Access of Uninitialized Pointer vulnerability in mozilla firefox. EPSS estimates a 0.56% chance of exploitation in the next 30 days, higher than 45.5% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.56%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 8 · Related 8
OPENSUSE-SU-2024:12184-1OPENSUSE-SU-2024:14572-1SUSE-SU-2022:3272-1SUSE-SU-2022:3273-1SUSE-SU-2022:3396-1USN-5504-1

Timeline

  1. 22-12-2022
    PublishedVulnerability first disclosed.
  2. 15-04-2025
    Last modifiedVulnerability information updated.

Description

Within the <code>lg_init()</code> function, if several allocations succeed but then one fails, an uninitialized pointer would have been freed despite never being allocated. This vulnerability affects Firefox < 102.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.56%

Chance of exploitation in the next 30 days

Percentile

46%

Versus all other CVEs

30-day change

+0.02 pp

From 0.55% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.56%

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

Ubuntu3 products
  • firefox< 102.0+build2-0ubuntu0.18.04.1 | < 102.0+build2-0ubuntu0.20.04.1
  • nss< 2:3.28.4-0ubuntu0.14.04.5+esm11 | < 2:3.28.4-0ubuntu0.16.04.14+esm3 | < 2:3.35-2ubuntu2.15 | < 2:3.49.1-1ubuntu1.8 | < 2:3.68.2-0ubuntu1.1
  • thunderbird< 1:102.2.2+build1-0ubuntu0.20.04.1 | < 1:102.2.2+build1-0ubuntu0.22.04.1
Mozilla1 product
  • firefox≥ unspecified, < 102 | < 102.0

2 vendors · 4 products

References

8 links