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Public proof of conceptFix available

CVE-2022-48522

A public proof of concept exists; no exploitation attested.

  • Published2023-08-22
  • WeaknessCWE-787

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2023-08-2219:16CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-48522?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-48522?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Perl
BranchAffectedFixed in
5.34= 5.34.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • perlUbuntu:22.04:LTSall versions · fixed in 5.34.0-3ubuntu1.3
  • perlUbuntu:20.04:LTSall versions · fixed in 5.30.0-9ubuntu0.5
  • perlRed Hat:hummingbird:1all versions · fixed in 0:5.42.2-524.hum1and 10 other packages
  • perlopenEuler:22.03-LTS-SP2all versions · fixed in 5.34.0-9.oe2203sp2
  • perlopenEuler:22.03-LTS-SP1all versions · fixed in 5.34.0-9.oe2203sp1
  • perlopenEuler:22.03-LTSall versions · fixed in 5.34.0-9.oe2203
  • perlDebian:14all versions · fixed in 5.36.0-4
  • perlDebian:13all versions · fixed in 5.36.0-4

66 more package ranges on OSV.dev

Vendor advisories

  • CVE-2022-48522 Red Hat Product Security203 products fixed

    perl: stack-based crash in S_find_uninit_var()

  • RHSA-2026:6206 Red Hat Product Security203 products fixed

    Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

  • ICSA-23-348-10 CISA5 known affected

    Siemens SIMATIC S7-1500

    SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) · SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) · SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) · +2 more

  • SSA-398330 Siemens ProductCERT5 known affected

    SSA-398330: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP >= V3.1.0 and < V3.1.5

    SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) >= V3.1.0 < V3.1.5 · SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) >= V3.1.0 < V3.1.5 · SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) >= V3.1.0 < V3.1.5 · +2 more

Full record on NVD

Fix

  1. Vendor fix Red Hat Product Security RHSA-2026:6206 · 203 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/
  2. Vendor fix CISA ICSA-23-348-10 · 5 productsUpdate to V3.1.5 or later version
  3. Vendor fix Siemens ProductCERT SSA-398330 · 1 productUpdate to V3.1.5 or later version
  4. Mitigation from the vendor CISA ICSA-23-348-10 · 5 productsOnly build and run applications from trusted sources.

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2023-08-22
Last Modified
2026-10-14
NVD status
Modified
GitHub Advisory
GHSA-96cv-gp7m-9r39

Frequently asked questions

What is CVE-2022-48522?

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.

Is CVE-2022-48522 actively exploited?

A proof-of-concept exploit exists for CVE-2022-48522, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2022-48522?

CVE-2022-48522 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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