CVE-2025-50360: A heap buffer overflow in compiler.c and compiler.h in Pepper language 0.1.1commit 961a5d9988c5986d563310275ad

Routine

HIGH 8.4DOWNGRADE

CVE-2025-50360 is a high-severity flaw (CVSS 8.4) affecting pepper. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A heap buffer overflow in compiler.c and compiler.h in Pepper language 0.1.1commit 961a5d9988c5986d563310275adad3fd181b2bb7. Malicious execution of a pepper source file(.pr) could lead to arbitrary code execution or Denial of Service.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	8.4 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.2% (top 85%)
CISA exploited list	No
Weakness	CWE-122
Published	2025-12-03
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: dannyvankooten

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

Am I affected?

Timeline

2025-12-03 19:15 UTCPublished CVE record published
2026-06-17 09:35 UTCUpdated Record last modified

dannyvankooten pepper DOWNGRADE

Affected: 0.1.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.1.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.1.1 (Debian / Ubuntu)

apt-cache madison pepper sudo apt install pepper=<VERSION_BEFORE_0.1.1> sudo apt-mark hold pepper

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

dnf --showduplicates list pepper sudo dnf downgrade pepper-<VERSION_BEFORE_0.1.1> sudo dnf versionlock add pepper

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-2025-50360?

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

Is CVE-2025-50360 being exploited?

CVE-2025-50360 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-2025-50360 affect?

CVE-2025-50360 affects pepper. Severity is high (CVSS 8.4). A heap buffer overflow in compiler.c and compiler.h in Pepper language 0.1.1commit 961a5d9988c5986d563310275adad3fd181b2bb7. Malicious execution of a pepper source file(.pr) could lead to arbitrary code execution or Denial of Service.

How urgent is CVE-2025-50360?

Priority 38/100. High severity; Public exploit reference

References

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