CVE-2025-29625: A buffer overflow vulnerability in Astrolog v7.70 allows attackers to execute arbitrary code or cause a Denial

Routine

HIGH 7.8DOWNGRADE

CVE-2025-29625 is a high-severity flaw (CVSS 7.8) affecting astrolog. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A buffer overflow vulnerability in Astrolog v7.70 allows attackers to execute arbitrary code or cause a Denial of Service (DoS) via an overly long environment variable passed to FileOpen function.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 80%)
CISA exploited list	No
Weakness	CWE-120
Published	2025-04-18
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: astrolog

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

Am I affected?

Timeline

2025-04-18 15:15 UTCPublished CVE record published
2026-06-17 09:05 UTCUpdated Record last modified

astrolog astrolog DOWNGRADE

Affected: 7.70

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.70

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 7.70 (Debian / Ubuntu)

apt-cache madison astrolog sudo apt install astrolog=<VERSION_BEFORE_7.70> sudo apt-mark hold astrolog

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

dnf --showduplicates list astrolog sudo dnf downgrade astrolog-<VERSION_BEFORE_7.70> sudo dnf versionlock add astrolog

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.

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-2025-29625?

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

Is CVE-2025-29625 being exploited?

CVE-2025-29625 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-2025-29625 affect?

CVE-2025-29625 affects astrolog. Severity is high (CVSS 7.8). A buffer overflow vulnerability in Astrolog v7.70 allows attackers to execute arbitrary code or cause a Denial of Service (DoS) via an overly long environment variable passed to FileOpen function.

How urgent is CVE-2025-29625?

Priority 37/100. High severity; Public exploit reference

References

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