CVE-2016-2037

The cpio_safer_name_suffix function in util.c in cpio 2.11 allows remote attackers to cause a denial of service (out-of-bounds write) via a crafted cpio file.

Published: 2016-02-22 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2016-2037 is rated Moderate Risk (53.1/100): CVSS Medium severity, with high exploitation likelihood (EPSS 5.48%, 92th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2016-2037

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 15.23% 5.48% -9.74%
2 2026-05-30 19.45% 15.23% -4.22%
3 2026-01-22 19.45%

Full EPSS history (17 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-2037

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.0 MEDIUM
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
2.8 3.6 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
8.6 2.9 [email protected]

Weakness enumeration for CVE-2016-2037

OS Trackers for CVE-2016-2037

vendor priority summary link
alpine CVE-2016-2037: 1 source package rows (cpio); 7 state rows across 7 repos (3.17-community, 3.18-community, 3.19-community, 3.20-community, 3.21-community, 3.22-community, edge-community); fixed 7, open 0. https://security.alpinelinux.org/vuln/CVE-2016-2037
debian not yet assigned CVE-2016-2037 not yet assigned priority: Debian including 1 source packages (cpio), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2016-2037
gentoo normal CVE-2016-2037: 1 GLSA(s) (202407-07), 1 atom(s) (app-arch/cpio); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2016-2037
redhat low https://access.redhat.com/security/cve/CVE-2016-2037
suse medium CVE-2016-2037 severity moderate: SUSE including 278 source package names (0.9.1:cpio-2.11-32.1, 1.0.0:cpio-2.11-32.1, …), 353 product×package rows across 78 product lines (Container caasp/v4/default-http-backend, Container caasp/v4/dnsmasq-nanny, … (78 product lines)): Fixed 196, Known Affected 157. https://www.suse.com/security/cve/CVE-2016-2037/
ubuntu medium CVE-2016-2037 medium priority: Ubuntu including 1 source packages (cpio), 8 status rows across 8 suites (precise, trusty, upstream, vivid, wily, xenial, yakkety, zesty): released 6, ignored 1, needed 1. https://ubuntu.com/security/CVE-2016-2037

Affected software / configurations for CVE-2016-2037

Vendor Product Version Raw CPE
gnu cpio 2.11 cpe:2.3:a:gnu:cpio:2.11:*:*:*:*:*:*:*
debian debian_linux 7.0 cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

References for CVE-2016-2037

cvelogic Threat Intelligence