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CVE-2026-2940

25
FAUCET Score

CVE-2026-2940 details an out-of-bounds write vulnerability in the URL Handler component of Zaher1307 tiny_web_server, specifically in the tiny.c file up to commit 8d77b1044a0ca3a5297d8726ac8aa2cf944d481b. This flaw, rated High severity with a CVSS score of 7.3, allows for remote exploitation without user interaction, potentially leading to low impact on confidentiality, integrity, and availability. While the exploit has been publicly disclosed, there is no evidence of active exploitation, and it lacks Metasploit, Nuclei, or ExploitDB modules, with minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
Zaher1307Tiny Web Server
8d77b1044a0ca3a5297d8726ac8aa2cf944d481bCNA affected

CVSS Data

CVSS version used by this source: 4.0

5.5MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
LOW
VS Integrity
LOW
VS Availability
LOW
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
PROOF_OF_CONCEPT
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.32%
Probability of exploitation in next 30 days
EPSS Percentile
24.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0032 is in the 6th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

github.com / Zaher1307/tiny_web_server
github.com / Zaher1307/tiny_web_server/issues/1
github.com / Zaher1307/tiny_web_server/issues/1
vuldb.com
vuldb.com
vuldb.com