CVE-2025-61728 | Excessive CPU consumption when building archive index in archive/zip

Exp

archive/zip uses a super-linear file name indexing algorithm that is invoked the first time a file in an archive is opened. This can lead to a denial of service when consuming a maliciously constructed ZIP archive.

Published: 2026-01-28 Last update: 2026-02-06 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-61728 is rated Exploit Available (57.7/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.64%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2025-61728

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2025-61728

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 0.01% 0.64% +0.64%
2 2026-01-29 — 0.01% —

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-61728

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/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 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2025-61728

OS Trackers for CVE-2025-61728

vendor priority summary link
alpine — CVE-2025-61728: 2 source package rows (go, opentofu); 91 state rows across 2 repos (3.23-community, edge-community); fixed 89, open 2. https://security.alpinelinux.org/vuln/CVE-2025-61728
debian unimportant CVE-2025-61728 unimportant priority: Debian including 4 source packages (golang-1.15, golang-1.19, golang-1.24, golang-1.25), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 3, open 2. https://security-tracker.debian.org/tracker/CVE-2025-61728
redhat medium — https://access.redhat.com/security/cve/CVE-2025-61728
suse medium CVE-2025-61728 severity moderate: SUSE including 106 source package names (13.2-9.1:curl-8.6.0-5.1, 13.2-9.1:iputils-20221126-6.1, …), 506 product×package rows across 67 product lines (Container suse/sl-micro/6.0/baremetal-os-container, Container suse/sl-micro/6.0/base-os-container, … (67 product lines)): Fixed 460, Known Not Affected 32, First Fixed 14. https://www.suse.com/security/cve/CVE-2025-61728/
ubuntu medium CVE-2025-61728 medium priority: Ubuntu including 16 source packages (golang, golang-1.10, …), 82 status rows across 8 suites (bionic, focal, jammy, noble, questing, trusty, upstream, xenial): needs-triage 49, DNE 33. https://ubuntu.com/security/CVE-2025-61728

Affected software / configurations for CVE-2025-61728

Vendor Product Version Raw CPE
golang go < 1.24.12 cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*
golang go >= 1.25.0, < 1.25.6 cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*

References for CVE-2025-61728

cvelogic Threat Intelligence