CVE-2025-45332: vkoskiv c-ray 1.1 contains a Null Pointer Dereference (NPD) vulnerability in the parse_mtllib function of its

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HIGH 7.5REMOTEDOWNGRADE

CVE-2025-45332 is a high-severity flaw (CVSS 7.5) affecting c-ray. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

vkoskiv c-ray 1.1 contains a Null Pointer Dereference (NPD) vulnerability in the parse_mtllib 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 69%)
CISA exploited list	No
Weakness	CWE-476
Published	2025-06-25
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: vkoskiv

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 18:15 UTCPublished CVE record published
2026-06-17 09:25 UTCUpdated Record last modified

vkoskiv c-ray 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 c-ray || rpm -q c-ray || c-ray --version

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

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

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

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

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-2025-45332?

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

Is CVE-2025-45332 being exploited?

CVE-2025-45332 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-2025-45332 affect?

CVE-2025-45332 affects c-ray. Severity is high (CVSS 7.5). vkoskiv c-ray 1.1 contains a Null Pointer Dereference (NPD) vulnerability in the parse_mtllib function of its data processing module, leading to unpredictable program behavior, causing segmentation faults, and program crashes.

How urgent is CVE-2025-45332?

Priority 44/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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