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CVE-2018-21245

28
FAUCET Score

CVE-2018-21245 describes an HTTP request smuggling vulnerability in Pound versions prior to 2.8, impacting the 'apsis pound' product. This critical vulnerability, with a CVSS score of 9.1, allows unauthenticated attackers to remotely manipulate HTTP requests, potentially leading to information disclosure or data integrity issues. While no public exploit code, Metasploit modules, or Nuclei templates are currently available, and there is no evidence of active exploitation or significant community discussion, its high severity warrants attention.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.8CPE matchmatch criteria
cpe:2.3:a:apsis:pound:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.13%
Probability of exploitation in next 30 days
EPSS Percentile
63.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0113 is in the 48th percentile among its peer group of 36,835 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

admin.hostpoint.ch / pipermail/pound_apsis.ch/2018-May/000054.html
Third Party Advisory
bugs.gentoo.org / 714084