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CVE-2014-1569

26
FAUCET Score

CVE-2014-1569 describes a data-smuggling vulnerability in the definite_length_decoder function within Mozilla Network Security Services (NSS) versions prior to 3.16.2.4 and 3.17.3. This flaw allows remote attackers to manipulate DER encoding of ASN.1 lengths, specifically by using long byte sequences for an encoding, leading to improper handling by the SEC_QuickDERDecodeItem function. The vulnerability carries a CVSS score of 7.5, indicating high severity with a network-based attack vector, low complexity, and potential for partial compromise of confidentiality, integrity, and availability. There is currently 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
<= 3.16.2.3CPE matchmatch criteria
cpe:2.3:a:mozilla:network_security_services:*:*:*:*:*:*:*:*
3.16.2.0CPE matchmatch criteria
cpe:2.3:a:mozilla:network_security_services:3.16.2.0:*:*:*:*:*:*:*
3.16.2.1CPE matchmatch criteria
cpe:2.3:a:mozilla:network_security_services:3.16.2.1:*:*:*:*:*:*:*
3.16.2.2CPE matchmatch criteria
cpe:2.3:a:mozilla:network_security_services:3.16.2.2:*:*:*:*:*:*:*
3.17.0CPE matchmatch criteria
cpe:2.3:a:mozilla:network_security_services:3.17.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.18%
Probability of exploitation in next 30 days
EPSS Percentile
86.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0318 is in the 76th percentile among its peer group of 51,551 CVEs.

Social Chatter

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

Patch Available

Vendor Patches (8)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: nspr-0:4.10.8-1.el5_11
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: nss-0:3.18.0-6.el5_11
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: nspr-0:4.10.8-1.el6_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: nss-0:3.18.0-5.3.el6_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: nss-util-0:3.18.0-1.el6_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: nspr-0:4.10.8-1.ael7b_1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: nss-0:3.18.0-2.2.ael7b_1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: nss-util-0:3.18.0-1.ael7b_1
View patch

Vendor Advisories (1)

redhatCVE-2014-1569Low

nss: QuickDER decoder length issue

Dec 1, 2014

References

lists.opensuse.org / opensuse-security-announce/2015-01/msg00024.html
lists.opensuse.org / opensuse-security-announce/2015-01/msg00032.html
lists.opensuse.org / opensuse-security-announce/2015-01/msg00033.html
lists.opensuse.org / opensuse-security-announce/2015-01/msg00036.html
lists.opensuse.org / opensuse-security-announce/2015-03/msg00000.html
bugzilla.mozilla.org / show_bug.cgi
Exploit
developer.mozilla.org / en-US/docs/Mozilla/Projects/NSS/NSS_3.17.3_release_notes
Vendor Advisory
imperialviolet.org / 2014/09/26/pkcs1.html
Exploit
reddit.com / r/netsec/comments/2hd1m8/rsa_signature_forgery_in_nss/cksnr02
Exploit
debian.org / security/2015/dsa-3186
intelsecurity.com / resources/wp-berserk-analysis-part-1.pdf
Exploit
oracle.com / technetwork/topics/security/bulletinapr2016-2952098.html
oracle.com / technetwork/topics/security/cpujul2015-2367936.html
oracle.com / technetwork/topics/security/cpuoct2015-2367953.html
securitytracker.com / id/1032909