CVE-2023-23461: Libpeconv – access violation, before commit b076013 (30/11/2022).

Q: How do I fix CVE-2023-23461?

libpeconv: upgrade to 2022-11-30. Exact commands for each OS are on this page.

Q: Is CVE-2023-23461 being exploited?

CVE-2023-23461 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-23461 affect?

CVE-2023-23461 affects libpeconv. Severity is critical (CVSS 9.8). Libpeconv – access violation, before commit b076013 (30/11/2022).

Q: How urgent is CVE-2023-23461?

Priority 52/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 9.8REMOTEUPGRADE

CVE-2023-23461 is a critical-severity flaw (CVSS 9.8) affecting libpeconv. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Libpeconv – access violation, before commit b076013 (30/11/2022).

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.7% (top 48%)
CISA exploited list	No
Published	2023-02-15
Last modified	2026-06-17

Publisher (CNA): Israel National Cyber Directorate · Vendor: libpeconv project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-02-15 19:15 UTCPublished CVE record published
2026-06-17 05:37 UTCUpdated Record last modified

libpeconv project libpeconv UPGRADE

Affected: < 2022-11-30

Fixed in: 2022-11-30

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy libpeconv || rpm -q libpeconv || libpeconv --version

2. UPGRADE to 2022-11-30 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade libpeconv

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade libpeconv

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-23461?

libpeconv: upgrade to 2022-11-30. Exact commands for each OS are on this page.

Is CVE-2023-23461 being exploited?

CVE-2023-23461 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-23461 affect?

CVE-2023-23461 affects libpeconv. Severity is critical (CVSS 9.8). Libpeconv – access violation, before commit b076013 (30/11/2022).

How urgent is CVE-2023-23461?

Priority 52/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2023-23462 CRITICAL 9.8 UPGRADE Libpeconv – integer overflow, before commit 75b1565 (30/11/2022).

References

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