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CVE-2025-15604

32
FAUCET Score

CVE-2025-15604 impacts Amon2 versions before 6.17 for Perl, due to an insecure random_string implementation that utilizes cryptographically weak random number generation for critical security functions such as session IDs, cookie secrets, and CSRF tokens. This vulnerability is rated 9.8 Critical (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), signifying it is remotely exploitable with low complexity and can lead to high impact on confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, no public exploit code available, and minimal community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 6.17CPE matchmatch criteria
cpe:2.3:a:tokuhirom:amon2:*:*:*:*:*:perl:*:*
>= 0, < 6.17CPE match
cpe:2.3:a:tokuhirom:amon2:*:*:*:*:*:perl:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.52%
Probability of exploitation in next 30 days
EPSS Percentile
41.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0052 is in the 20th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / tokuhirom/Amon/pull/135
Issue TrackingPatch
metacpan.org / release/TOKUHIROM/Amon2-6.17/changes
Product
metacpan.org / release/TOKUHIROM/Amon2-6.17/diff/TOKUHIROM/Amon2-6.16
Product
security.metacpan.org / docs/guides/random-data-for-security.html
Third Party Advisory
openwall.com / lists/oss-security/2026/03/28/4
Mailing ListThird Party Advisory