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CVE-2025-60455

27
FAUCET Score

CVE-2025-60455 is an Unsafe Deserialization vulnerability affecting Modular Max Serve versions prior to 25.6, specifically when the "--experimental-enable-kvcache-agent" feature is enabled. This flaw allows unauthenticated attackers to execute arbitrary code on the affected system, posing a significant risk. With a CVSS score of 8.4 (HIGH), the vulnerability has low attack complexity and no user interaction required, leading to high impacts on confidentiality, integrity, and availability. While there is no evidence of active exploitation (KEV: No) and no public exploit code available (Metasploit, Nuclei, ExploitDB: None), the vulnerability has garnered some community discussion and media coverage, indicating awareness within the cybersecurity community.

Impacted Technologies

VendorProductVersion(s)CPE
< 25.6.0CPE matchmatch criteria
cpe:2.3:a:modular:max:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.4HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.5
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.30%
Probability of exploitation in next 30 days
EPSS Percentile
22.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0030 is in the 20th percentile among its peer group of 3,241 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.5 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
pippatch availablevia ghsa
Product: modularFixed in: 25.6.0

Vendor Advisories (1)

pipGHSA-7xcv-9j6c-2fmccritical

Modular Max Serve has Unsafe Deserialization vulnerability

Nov 18, 2025

References

github.com / modular/modular/blame/main/max/serve/kvcache_agent/kvcache_agent.py
Broken Link
github.com / modular/modular/commit/10620059fb5c47fb0c30e5d21a8ff3b8d622fba4
Patch
github.com / modular/modular/commit/b20e749fa892dbe772e890a268002f732164d9f5
Patch
github.com / modular/modular/commit/ee9c4ab02345dd30bed8b79771b6909ff1b930a1
Patch
github.com / modular/modular/issues/4795
Issue TrackingPatch
oligo.security / blog/shadowmq-how-code-reuse-spread-critical-vulnerabilities-across-the-ai-ecosystem
ExploitThird Party Advisory