CVE-2023-34823: fdkaac before 1.0.5 was discovered to contain a stack overflow in read_callback function in src/main.c.

Q: How do I fix CVE-2023-34823?

fdkaac: upgrade to 1.0.5. Exact commands for each OS are on this page.

Q: Is CVE-2023-34823 being exploited?

CVE-2023-34823 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-2023-34823 affect?

CVE-2023-34823 affects fdkaac. Severity is medium (CVSS 5.5). fdkaac before 1.0.5 was discovered to contain a stack overflow in read_callback function in src/main.c.

Q: How urgent is CVE-2023-34823?

Priority 30/100. Public exploit reference

Routine

MEDIUM 5.5UPGRADE

CVE-2023-34823 is a medium-severity flaw (CVSS 5.5) affecting fdkaac. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

fdkaac before 1.0.5 was discovered to contain a stack overflow in read_callback function in src/main.c.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.3% (top 78%)
CISA exploited list	No
Weakness	CWE-787
Published	2023-06-14
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: fdkaac project

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

Am I affected?

Timeline

2023-06-14 14:15 UTCPublished CVE record published
2026-06-17 06:04 UTCUpdated Record last modified

fdkaac project fdkaac UPGRADE

Affected: < 1.0.5

Fixed in: 1.0.5

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 1.0.5 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade fdkaac

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-2023-34823?

fdkaac: upgrade to 1.0.5. Exact commands for each OS are on this page.

Is CVE-2023-34823 being exploited?

CVE-2023-34823 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-2023-34823 affect?

CVE-2023-34823 affects fdkaac. Severity is medium (CVSS 5.5). fdkaac before 1.0.5 was discovered to contain a stack overflow in read_callback function in src/main.c.

How urgent is CVE-2023-34823?

Priority 30/100. Public exploit reference

Related CVEs

CVE-2023-34824 MEDIUM 5.5 UPGRADE fdkaac before 1.0.5 was discovered to contain a heap buffer overflow in caf_info function in caf_reader.c.
CVE-2022-37781 HIGH 7.8 DOWNGRADE fdkaac v1.0.3 was discovered to contain a heap buffer overflow via __interceptor_memcpy.part.46 at /sanitizer_
CVE-2022-36148 MEDIUM 5.5 UPGRADE fdkaac commit 53fe239 was discovered to contain a floating point exception (FPE) via wav_open at /src/wav_read

References

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