CVE-2024-2961

The iconv() function in the GNU C Library versions 2.39 and older may overflow the output buffer passed to it by up to 4 bytes when converting strings to the ISO-2022-CN-EXT character set, which may be used to crash an application or overwrite a neighbouring variable.

Published: 2024-04-17 Last update: 2026-05-12 Assigner: 3ff69d7a-14f2-4f67-a097-88dee7810d18 Source: 3ff69d7a-14f2-4f67-a097-88dee7810d18
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-2961 is rated Moderate Risk (64.3/100): CVSS High severity, with high exploitation likelihood (EPSS 91.92%, 100th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. 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-2024-2961

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 2026-06-02 91.75% 91.92% +0.17%
2 2026-05-22 91.92% 91.75% -0.17%
3 2026-04-24 — 91.92% —

Full EPSS history (69 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-2961

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.3 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
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:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.5 4.7 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2024-2961

GitHub Security Advisory for CVE-2024-2961

GHSA-22q4-f5r6-3xqw · Severity: high — The iconv() function in the GNU C Library versions 2.39 and older may overflow the output buffer...

OS Trackers for CVE-2024-2961

vendor priority summary link
debian not yet assigned CVE-2024-2961 not yet assigned priority: Debian including 1 source packages (glibc), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2024-2961
gentoo high CVE-2024-2961: 1 GLSA(s) (202405-17), 1 atom(s) (sys-libs/glibc); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2024-2961
redhat high — https://access.redhat.com/security/cve/CVE-2024-2961
suse high CVE-2024-2961 severity important: SUSE including 936 source package names (1.21-11.5:glibc-2.31-150300.74.1, 1.5.1-1.5.1:glibc-2.31-150300.74.1, …), 2086 product×package rows across 291 product lines (Container bci/bci-base-fips, Container bci/bci-busybox, … (291 product lines)): Fixed 1858, Known Affected 200, Known Not Affected 28. https://www.suse.com/security/cve/CVE-2024-2961/
ubuntu medium CVE-2024-2961 medium priority: Ubuntu including 2 source packages (eglibc, glibc), 19 status rows across 11 suites (bionic, focal, jammy, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): released 10, DNE 7, needs-triage 2. https://ubuntu.com/security/CVE-2024-2961

Affected software / configurations for CVE-2024-2961

Vendor Product Version Raw CPE
gnu glibc >= 2.1.93, < 2.40 cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*
netapp active_iq_unified_manager — cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*
debian debian_linux 10.0 cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
netapp hci_h300s_firmware — cpe:2.3:o:netapp:hci_h300s_firmware:-:*:*:*:*:*:*:*
netapp hci_h500s_firmware — cpe:2.3:o:netapp:hci_h500s_firmware:-:*:*:*:*:*:*:*
netapp hci_h700s_firmware — cpe:2.3:o:netapp:hci_h700s_firmware:-:*:*:*:*:*:*:*
netapp hci_h410s_firmware — cpe:2.3:o:netapp:hci_h410s_firmware:-:*:*:*:*:*:*:*
netapp hci_h410c_firmware — cpe:2.3:o:netapp:hci_h410c_firmware:-:*:*:*:*:*:*:*
netapp hci_h610c_firmware — cpe:2.3:o:netapp:hci_h610c_firmware:-:*:*:*:*:*:*:*
netapp hci_h610s_firmware — cpe:2.3:o:netapp:hci_h610s_firmware:-:*:*:*:*:*:*:*
netapp hci_h615c_firmware — cpe:2.3:o:netapp:hci_h615c_firmware:-:*:*:*:*:*:*:*
netapp hci_compute_node — cpe:2.3:o:netapp:hci_compute_node:-:*:*:*:*:*:*:*
netapp ontap_select_deploy_administration_utility — cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*

References for CVE-2024-2961

URL Tags
http://www.openwall.com/lists/oss-security/2024/04/17/9 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2024/04/18/4 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2024/04/24/2 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2024/05/27/1 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2024/05/27/2 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2024/05/27/3 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2024/05/27/4 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2024/05/27/5 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2024/05/27/6 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2024/07/22/5 Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2024/05/msg00001.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/[email protected]/message/BTJFBGHDYG5PEIFD5WSSSKSFZ2AZWC5N/ Broken Link
https://lists.fedoraproject.org/archives/list/[email protected]/message/P3I4KYS6EU6S7QZ47WFNTPVAHFIUQNEL/ Broken Link
https://lists.fedoraproject.org/archives/list/[email protected]/message/YAMJQI3Y6BHWV3CUTYBXOZONCUJNOB2Z/ Broken Link
https://security.netapp.com/advisory/ntap-20240531-0002/ Third Party Advisory
https://sourceware.org/git/?p=glibc.git;a=blob;f=advisories/GLIBC-SA-2024-0004 Third Party Advisory
https://www.ambionics.io/blog/iconv-cve-2024-2961-p1 Broken Link
https://www.ambionics.io/blog/iconv-cve-2024-2961-p2 Broken Link
https://www.ambionics.io/blog/iconv-cve-2024-2961-p3 Broken Link
https://cert-portal.siemens.com/productcert/html/ssa-082556.html
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