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CVE-2019-9904

19
FAUCET Score

CVE-2019-9904 is a stack consumption vulnerability affecting Graphviz 2.40.1, specifically within its libcdt.a and libcgraph.a libraries due to recursive agclose calls. This medium-severity vulnerability (CVSS 6.5) can be triggered remotely with low attack complexity, but requires user interaction, leading to a high impact on availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.40.1CPE matchmatch criteria
cpe:2.3:a:graphviz:graphviz:2.40.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.70%
Probability of exploitation in next 30 days
EPSS Percentile
84.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0270 is in the 93rd percentile among its peer group of 26,219 CVEs.

Social Chatter

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

Vendor Patches (3)

redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: graphviz
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: graphviz
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: graphviz

Vendor Advisories (1)

redhatCVE-2019-9904Low

graphviz: recursive function call in agclose in lib\cgraph\graph.c causing stack consumption

Mar 16, 2019

References

gitlab.com / graphviz/graphviz/issues/1512
ExploitIssue TrackingThird Party Advisory
research.loginsoft.com / bugs/stack-buffer-overflow-in-function-agclose-graphviz
ExploitThird Party Advisory
security.gentoo.org / glsa/202107-04
Third Party Advisory