CVE-2022-48522: perl Out-of-bounds Write
CVSS: 9.8v3.1CriticalModified
AliasesUBUNTU-CVE-2022-48522DEBIAN-CVE-2022-48522
Published 22-08-2023Last modified 14-10-2026
Vulnerability summary
CVE-2022-48522 is a critical (CVSS 9.8) Out-of-bounds Write vulnerability in perl. EPSS estimates a 3.46% chance of exploitation in the next 30 days, higher than 88.9% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
9.8/10
010
Critical · v3.1 (NVD)EPSS score
3.46%
0%100%
Low · +0.86 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Advisory lineage
Upstream 0 · Downstream 2 · Related 1Timeline
- 22-08-2023PublishedVulnerability first disclosed.
- 14-10-2026Last modifiedVulnerability information updated.
Description
In Perl 5.34.0, function S_find_uninit_var in sv.c has a stack-based crash that can lead to remote code execution or local privilege escalation.
CVSS metrics
3 scores · 3 sources · 1 versionCritical 9.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
3.46%
Chance of exploitation in the next 30 days
Percentile
89%
Versus all other CVEs
30-day change
+0.86 pp
From 2.61% on 21-09-2026
21-09-202621-10-2026
EPSS score3.46%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundPerl5
Maturity: poc
Weaknesses
CWE · root causeAffected systems
3 vendors · 3 products
