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CVE-2017-11626

20
FAUCET Score

CVE-2017-11626 describes a stack-consumption vulnerability in libqpdf, specifically affecting QPDF version 6.0.0. This flaw, located in the QPDFTokenizer::resolveLiteral function, can be triggered by a specially crafted file, leading to a denial of service due to an "infinite loop" after repeated calls to QPDFObjectHandle::parseInternal. Rated Medium severity (CVSS 5.5), it requires local access and user interaction (e.g., opening a malicious file) to exploit, resulting in high availability impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
6.0.0CPE matchmatch criteria
cpe:2.3:a:qpdf_project:qpdf:6.0.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.5MEDIUM

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.21%
Probability of exploitation in next 30 days
EPSS Percentile
65.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0121 is in the 76th percentile among its peer group of 5,758 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 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 (1)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: qpdf

Vendor Advisories (1)

redhatCVE-2017-11626Low

qpdf: Infinite loop in QPDFTokenizer::resolveLiteral function in QPDFTokenizer.cc

Jul 25, 2017

References

github.com / qpdf/qpdf/issues/119
ExploitThird Party Advisory
somevulnsofadlab.blogspot.jp / 2017/07/qpdfan-infinite-loop-in-libqpdf_65.html
ExploitThird Party Advisory
usn.ubuntu.com / 3638-1