CVE-2025-8267: Versions of the package ssrfcheck before 1.2.0 are vulnerable to Server-Side Request Forgery (SSRF) due to an

Q: How do I fix CVE-2025-8267?

ssrf check: upgrade to 1.2.0. Exact commands for each OS are on this page.

Q: Is CVE-2025-8267 being exploited?

CVE-2025-8267 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-8267 affect?

CVE-2025-8267 affects ssrf check. Severity is high (CVSS 8.2). Versions of the package ssrfcheck before 1.2.0 are vulnerable to Server-Side Request Forgery (SSRF) due to an incomplete denylist of IP address ranges. Specifically, the package fails to classify the reserved IP address space 224.0.0.0/4 (M

Q: How urgent is CVE-2025-8267?

Priority 49/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

HIGH 8.2REMOTEUPGRADE

CVE-2025-8267 is a high-severity flaw (CVSS 8.2) affecting ssrf check. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Versions of the package ssrfcheck before 1.2.0 are vulnerable to Server-Side Request Forgery (SSRF) due to an incomplete denylist of IP address ranges. Specifically, the package fails to classify the reserved IP address space 224.0.0.0/4 (Multicast) as invalid. This oversight allows attackers to craft requests targeting these multicast addresses.

Why this priority

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

A fixed release or distro patch exists.

Risk facts

CVSS score	8.2 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 57%)
CISA exploited list	No
Weakness	CWE-918
Published	2025-07-28
Last modified	2026-06-17

Publisher (CNA): Snyk · Vendor: felipperegazio

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

Am I affected?

Timeline

2025-07-28 05:16 UTCPublished CVE record published
2026-06-17 10:06 UTCUpdated Record last modified

felipperegazio ssrf check UPGRADE

Affected: < 1.2.0

Fixed in: 1.2.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy ssrf-check || rpm -q ssrf-check || ssrf-check --version

2. UPGRADE to 1.2.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade ssrf-check

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade ssrf-check

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2025-8267?

ssrf check: upgrade to 1.2.0. Exact commands for each OS are on this page.

Is CVE-2025-8267 being exploited?

CVE-2025-8267 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-2025-8267 affect?

CVE-2025-8267 affects ssrf check. Severity is high (CVSS 8.2). Versions of the package ssrfcheck before 1.2.0 are vulnerable to Server-Side Request Forgery (SSRF) due to an incomplete denylist of IP address ranges. Specifically, the package fails to classify the reserved IP address space 224.0.0.0/4 (M

How urgent is CVE-2025-8267?

Priority 49/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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