CVE-2021-41772

Go before 1.16.10 and 1.17.x before 1.17.3 allows an archive/zip Reader.Open panic via a crafted ZIP archive containing an invalid name or an empty filename field.

Published: 2021-11-08 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-41772 is rated Moderate Risk (63/100): CVSS High severity, with medium exploitation likelihood (EPSS 3.05%). EPSS rose +2.99% over the last day, indicating growing attacker interest. Review affected assets and schedule 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-2021-41772

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 0.06% 3.05% +2.99%
2 2025-11-21 1.07% 0.06% -1.00%
3 2025-11-18 — 1.07% —

Full EPSS history (16 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-41772

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
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.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/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:L)
Exploitation conditions are straightforward and predictable.
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.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2021-41772

OS Trackers for CVE-2021-41772

vendor priority summary link
alpine high CVE-2021-41772: 1 source package rows (go); 43 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 36. https://security.alpinelinux.org/vuln/CVE-2021-41772
debian unimportant CVE-2021-41772 unimportant priority: Debian including 1 source packages (golang-1.15), 1 status rows across 1 suites (bullseye): resolved 1. https://security-tracker.debian.org/tracker/CVE-2021-41772
gentoo high CVE-2021-41772: 1 GLSA(s) (202208-02), 1 atom(s) (dev-lang/go); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2021-41772
redhat medium — https://access.redhat.com/security/cve/CVE-2021-41772
suse high CVE-2021-41772 severity important: SUSE including 27 source package names (1.0.1-build4.16.1:go1.16-1.16.10-1.32.1, 1.16-13.3:go1.16-1.16.10-1.32.1, …), 63 product×package rows across 13 product lines (Container bci/golang, Container trento/trento-runner, … (13 product lines)): Fixed 63. https://www.suse.com/security/cve/CVE-2021-41772/
ubuntu medium CVE-2021-41772 medium priority: Ubuntu including 6 source packages (golang-1.11, golang-1.15, golang-1.16, golang-1.17, golang-1.7, golang-1.8), 42 status rows across 15 suites (bionic, focal, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): ignored 17, DNE 15, needs-triage 9, released 1. https://ubuntu.com/security/CVE-2021-41772

Affected software / configurations for CVE-2021-41772

Vendor Product Version Raw CPE
golang go < 1.16.10 cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*
golang go >= 1.17.0, < 1.17.3 cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*
fedoraproject fedora 34 cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
fedoraproject fedora 35 cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
oracle timesten_in-memory_database — cpe:2.3:a:oracle:timesten_in-memory_database:-:*:*:*:*:*:*:*

References for CVE-2021-41772

cvelogic Threat Intelligence