CVE-2009-1351: Heap-based buffer overflow in Apollo 37zz allows remote attackers to cause a denial of service (application cr

This week

HIGH 9.3DOWNGRADE

CVE-2009-1351 is a high-severity flaw (CVSS 9.3) affecting apollo. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Heap-based buffer overflow in Apollo 37zz allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a long URI in a playlist (.m3u) file.

Why this priority

Critical severity
EPSS top 7%: very likely to be exploited
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.3 (High)
EPSS exploit chance	5.6% (top 7%)
CISA exploited list	No
Weakness	CWE-119
Published	2009-04-21
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: heikki ylinen

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2009-04-21 16:24 UTCPublished CVE record published
2026-06-16 23:07 UTCUpdated Record last modified

heikki ylinen apollo DOWNGRADE

Affected: 37zz

Fixed in: no fixed release known

Safe to downgrade to: a release before 37zz

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 37zz (Debian / Ubuntu)

apt-cache madison apollo sudo apt install apollo=<VERSION_BEFORE_37zz> sudo apt-mark hold apollo

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list apollo sudo dnf downgrade apollo-<VERSION_BEFORE_37zz> sudo dnf versionlock add apollo

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Apollo 37zz - '.m3u' Local Heap Overflow (PoC)

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-2009-1351?

apollo: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2009-1351 being exploited?

CVE-2009-1351 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-2009-1351 affect?

CVE-2009-1351 affects apollo. Severity is high (CVSS 9.3). Heap-based buffer overflow in Apollo 37zz allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a long URI in a playlist (.m3u) file.

How urgent is CVE-2009-1351?

Priority 61/100. Critical severity; EPSS top 7%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2024-43397 MEDIUM 4.3 UPGRADE Apollo is a configuration management system
CVE-2024-42662 HIGH 7.5 DOWNGRADE An issue in apollocongif apollo v.2.2.0 allows a remote attacker to obtain sensitive information via a crafted
CVE-2023-25570 HIGH 7.5 UPGRADE Apollo is a configuration management system
CVE-2023-25569 MEDIUM 5.7 UPGRADE Apollo is a configuration management system
CVE-2022-4962 MEDIUM 4.3 DOWNGRADE A vulnerability was found in Apollo 2.0.0/2.0.1 and classified as problematic

References

← Back to latest CVEs