Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2016-4429

23
FAUCET Score

CVE-2016-4429 describes a stack-based buffer overflow in the GNU C Library's clntudp_call function, impacting Canonical, GNU, and openSUSE products. This vulnerability allows remote attackers to trigger a denial of service or potentially other impacts by flooding a system with specially crafted ICMP and UDP packets. With a CVSS score of 5.9 (Medium), exploitation requires high attack complexity but does not necessitate user interaction or privileges. There is no evidence of active exploitation, publicly available exploit code in Metasploit or ExploitDB, nor significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
42.1CPE matchmatch criteria
cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:*
13.2CPE matchmatch criteria
cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*
< 2.24CPE matchmatch criteria
cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*
12.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.9MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.92%
Probability of exploitation in next 30 days
EPSS Percentile
89.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0392 is in the 85th percentile among its peer group of 19,956 CVEs.

Social Chatter

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

Vendor Patches (2)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: glibc
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: libtirpc

Vendor Advisories (1)

redhatCVE-2016-4429Moderate

glibc: libtirpc: stack (frame) overflow in Sun RPC clntudp_call()

May 18, 2016

References

lists.opensuse.org / opensuse-updates/2016-06/msg00030.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-updates/2016-07/msg00039.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2020/06/msg00027.html
source.android.com / security/bulletin/2017-12-01
Third Party Advisory
sourceware.org / bugzilla/show_bug.cgi
Issue TrackingPatchThird Party Advisory
sourceware.org / git/gitweb.cgi
usn.ubuntu.com / 3759-1
Third Party Advisory
usn.ubuntu.com / 3759-2
Third Party Advisory
oracle.com / /security-alerts/cpujul2021.html
www-01.ibm.com / support/docview.wss
Broken Link
securityfocus.com / bid/102073
Third Party AdvisoryVDB Entry