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CVE-2023-35839

26
FAUCET Score

CVE-2023-35839 is a critical vulnerability affecting Solon versions prior to v2.3.3, specifically within the sofa-hessian component. This flaw allows unauthenticated remote attackers to execute arbitrary code by submitting a specially crafted payload, posing a severe risk to affected systems. With a CVSS score of 9.8, it signifies a high impact on confidentiality, integrity, and availability, requiring no user interaction or complex attack conditions. While there is no evidence of active exploitation, public exploit code, or significant community discussion, the potential for severe damage necessitates immediate patching.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.3.3CPE matchmatch criteria
cpe:2.3:a:solon:solon:*:*:*:*:*:*:*:*

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
1.07%
Probability of exploitation in next 30 days
EPSS Percentile
61.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0107 is in the 47th percentile among its peer group of 36,862 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

No media coverage found for this CVE.

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)

mavenpatch availablevia ghsa
Product: org.noear:solonFixed in: 2.3.3

Vendor Advisories (1)

mavenGHSA-7q8c-49f4-4c8qcritical

Solon vulnerable to deserialization of untrusted data

Jun 19, 2023

References

github.com / noear/solon/compare/v2.3.2...v2.3.3
Release Notes
github.com / noear/solon/issues/145
ExploitIssue Tracking