CVE-2024-7264 | ASN.1 date parser overread

Exp

libcurl's ASN1 parser code has the `GTime2str()` function, used for parsing an ASN.1 Generalized Time field. If given an syntactically incorrect field, the parser might end up using -1 for the length of the *time fraction*, leading to a `strlen()` getting performed on a pointer to a heap buffer area that is not (purposely) null terminated. This flaw most likely leads to a crash, but can also lead to heap contents getting returned to the application when [CURLINFO_CERTINFO](https://curl.se/libcurl/c/CURLINFO_CERTINFO.html) is used.

Published: 2024-07-31 Last update: 2025-11-03 Assigner: 2499f714-1537-4658-8207-48ae4bb9eae9 Source: 2499f714-1537-4658-8207-48ae4bb9eae9
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-7264 is rated High Exploit Risk (79.8/100): CVSS Medium severity, with high exploitation likelihood (EPSS 16.21%, 97th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +15.33% over the last day, indicating growing attacker interest. 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-2024-7264

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

Exploit prediction scoring system (EPSS) score for CVE-2024-7264

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 0.88% 16.21% +15.33%
2 2026-06-10 0.80% 0.88% +0.09%
3 2026-05-22 — 0.80% —

Full EPSS history (53 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-7264

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 [email protected]
6.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L 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:L)
A normal user session is enough; they don’t have to be admin.
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:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 2.8 3.4 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2024-7264

OS Trackers for CVE-2024-7264

vendor priority summary link
alpine — CVE-2024-7264: 1 source package rows (curl); 218 state rows across 7 repos (3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 6, open 212. https://security.alpinelinux.org/vuln/CVE-2024-7264
debian not yet assigned CVE-2024-7264 not yet assigned priority: Debian including 1 source packages (curl), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2024-7264
redhat low — https://access.redhat.com/security/cve/CVE-2024-7264
suse medium CVE-2024-7264 severity moderate: SUSE including 388 source package names (0.0.17-1.1:curl-8.6.0-150600.4.3.1, 0.0.17-1.1:libcurl4-8.6.0-150600.4.3.1, …), 947 product×package rows across 315 product lines (Container bci/gcc, Container bci/golang, … (315 product lines)): Fixed 732, Known Affected 213, First Fixed 2. https://www.suse.com/security/cve/CVE-2024-7264/
ubuntu medium CVE-2024-7264 medium priority: Ubuntu including 1 source packages (curl), 10 status rows across 10 suites (bionic, focal, jammy, noble, oracular, plucky, questing, trusty, upstream, xenial): released 10. https://ubuntu.com/security/CVE-2024-7264

Affected software / configurations for CVE-2024-7264

Vendor Product Version Raw CPE
haxx libcurl >= 7.32.0, < 8.9.1 cpe:2.3:a:haxx:libcurl:*:*:*:*:*:*:*:*

References for CVE-2024-7264

cvelogic Threat Intelligence