CVE-2025-45333: berkeley-abc abc 1.1 contains a Null Pointer Dereference (NPD) vulnerability in the Abc_NtkCecFraigPart functi

This week

HIGH 7.5REMOTEDOWNGRADE

CVE-2025-45333 is a high-severity flaw (CVSS 7.5) affecting abc. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

berkeley-abc abc 1.1 contains a Null Pointer Dereference (NPD) vulnerability in the Abc_NtkCecFraigPart function of its data processing module, leading to unpredictable program behavior, causing segmentation faults, and program crashes.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 65%)
CISA exploited list	No
Weakness	CWE-476
Published	2025-06-25
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: berkeley-abc

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

Am I affected?

Timeline

2025-06-25 20:15 UTCPublished CVE record published
2026-06-17 09:25 UTCUpdated Record last modified

berkeley-abc abc DOWNGRADE

Affected: 1.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.1 (Debian / Ubuntu)

apt-cache madison abc sudo apt install abc=<VERSION_BEFORE_1.1> sudo apt-mark hold abc

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

dnf --showduplicates list abc sudo dnf downgrade abc-<VERSION_BEFORE_1.1> sudo dnf versionlock add abc

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-2025-45333?

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

Is CVE-2025-45333 being exploited?

CVE-2025-45333 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-2025-45333 affect?

CVE-2025-45333 affects abc. Severity is high (CVSS 7.5). berkeley-abc abc 1.1 contains a Null Pointer Dereference (NPD) vulnerability in the Abc_NtkCecFraigPart function of its data processing module, leading to unpredictable program behavior, causing segmentation faults, and program crashes.

How urgent is CVE-2025-45333?

Priority 45/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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