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CVE-2017-1000372

32
FAUCET Score

CVE-2017-1000372 is a critical vulnerability in OpenBSD's stack guard page implementation, affecting OpenBSD 6.1 and potentially earlier versions. This flaw allows attackers to bypass the guard page, leading to arbitrary code execution, particularly through setuid binaries like /usr/bin/at. With a CVSS score of 9.8 (Critical), it presents a high-impact threat due to its network-based attack vector, low complexity, and complete compromise of confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion with 10 mentions, indicating awareness and potential for future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
<= 6.1CPE matchmatch criteria
cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/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
3.0

Exploit Intelligence

EPSS Score
3.96%
Probability of exploitation in next 30 days
EPSS Percentile
89.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0396 is in the 82nd percentile among its peer group of 36,897 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

Remediation records are not available for this CVE.

References

ftp.openbsd.org / pub/OpenBSD/patches/6.1/common/008_exec_subr.patch.sig
Mailing ListVendor Advisory
qualys.com / 2017/06/19/stack-clash/stack-clash.txt
Mailing ListThird Party Advisory
securityfocus.com / bid/99172
Third Party AdvisoryVDB Entry