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CVE-2017-9434

20
FAUCET Score

CVE-2017-9434 describes an out-of-bounds read vulnerability within the Inflator filter of Crypto++ (cryptopp) versions up to 5.6.5, specifically in zinflate.cpp. This vulnerability has a CVSS v3 score of 5.3 (Medium), indicating a network-based attack with low complexity, requiring no user interaction, and potentially leading to a loss of confidentiality. There is no evidence of active exploitation, nor are there publicly available exploit modules or proof-of-concept code in common repositories like Metasploit or ExploitDB. Community discussion and media coverage for this CVE are minimal, suggesting it has not garnered significant attention.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.6.4CPE matchmatch criteria
cpe:2.3:a:cryptopp:crypto\+\+:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.37%
Probability of exploitation in next 30 days
EPSS Percentile
69.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0137 is in the 50th percentile among its peer group of 23,701 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

openwall.com / lists/oss-security/2017/06/06/2
Mailing ListThird Party Advisory
github.com / weidai11/cryptopp/commit/07dbcc3d9644b18e05c1776db2a57fe04d780965
Third Party Advisory
github.com / weidai11/cryptopp/issues/414
Third Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/7IL5A6465IEPW5GAWGXB2ENJPFYVWTJM
securityfocus.com / bid/99007