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CVE-2017-11697

26
FAUCET Score

CVE-2017-11697 is a denial-of-service vulnerability affecting Mozilla Network Security Services (NSS) in the __hash_open function. An attacker can trigger a floating point exception and crash by providing a specially crafted cert8.db file. This vulnerability has a CVSS v3 score of 7.8 (High), indicating a local attack vector with low complexity and high impact on confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:mozilla:network_security_services:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.52%
Probability of exploitation in next 30 days
EPSS Percentile
41.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0052 is in the 81st percentile among its peer group of 16,994 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 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

Vendor Advisories (2)

microsoft2017-Dec/CVE-2017-11697Important

The __hash_open function in hash.c:229 in Mozilla Network Security Services (NSS) allows context-dependent attackers to cause a denial of service (floating point exception and crash) via a crafted cert8.db file.

Dec 12, 2017
redhatCVE-2017-11697Low

nss: Floating Point Exception in __hash_open

Aug 9, 2017

References

packetstormsecurity.com / files/143735/NSS-Buffer-Overflows-Floating-Point-Exception.html
Third Party AdvisoryVDB Entry
seclists.org / fulldisclosure/2017/Aug/17
ExploitMailing ListThird Party Advisory
security.gentoo.org / glsa/202003-37
geeknik.net / 9brdqk6xu
ExploitThird Party Advisory
securityfocus.com / bid/100345
Third Party AdvisoryVDB Entry
securitytracker.com / id/1039153
Third Party AdvisoryVDB Entry