Medium Memory corruption exploit reference

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

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 Jul 31, 2024 · Updated Oct 14, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP, GitHub Security Advisories · CNA: curl

Low

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.

How the score was calculated

EPSS 17.3% (30-day exploitation probability)+15
Technical severity (medium)+3

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Not confirmed

Not in CISA KEV — an absence of record, not proof it is unexploited.

EPSS FIRST

17.3%

ahead of 97% of scored CVEs · Oct 14, 2026

Affects

Curl

Curl and 1 more

CVSS base

6.5

Medium · 4 source(s)

CISA SSVC assessment CISA

Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.

Exploitation

None

none · proof-of-concept · active

Automatable

can an attacker script the kill-chain steps

Technical impact

Partial

partial · total control of the vulnerable component

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (Curl Curl, Haxx Libcurl).
The attack is network-based and needs no privileges: restrict exposure (ACLs, VPN, WAF) until patched.
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Exploitation requires user interaction: tighten email/web filtering and warn affected users.
EPSS ahead of 97% of scored CVEs: prioritize it in the patch queue.
Search available logs for exploit probes matching the vulnerability class (memory corruption), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
Curl	Curl	≥ 7.56.0 and ≤ 7.56.0≥ 7.50.2 and ≤ 7.50.2≥ 7.50.3 and ≤ 7.50.3≥ 7.51.0 and ≤ 7.51.0≥ 7.52.0 and ≤ 7.52.0≥ 7.52.1 and ≤ 7.52.1≥ 7.53.0 and ≤ 7.53.0≥ 7.53.1 and ≤ 7.53.1 and 87 more ≥ 7.54.0 and ≤ 7.54.0≥ 7.54.1 and ≤ 7.54.1≥ 7.55.0 and ≤ 7.55.0≥ 7.55.1 and ≤ 7.55.1≥ 7.50.1 and ≤ 7.50.1≥ 7.56.1 and ≤ 7.56.1≥ 7.57.0 and ≤ 7.57.0≥ 7.58.0 and ≤ 7.58.0≥ 7.59.0 and ≤ 7.59.0≥ 7.60.0 and ≤ 7.60.0≥ 7.61.0 and ≤ 7.61.0≥ 7.61.1 and ≤ 7.61.1≥ 7.62.0 and ≤ 7.62.0≥ 7.63.0 and ≤ 7.63.0≥ 7.64.0 and ≤ 7.64.0≥ 7.64.1 and ≤ 7.64.1≥ 7.42.0 and ≤ 7.42.0≥ 7.32.0 and ≤ 7.32.0≥ 7.33.0 and ≤ 7.33.0≥ 7.34.0 and ≤ 7.34.0≥ 7.35.0 and ≤ 7.35.0≥ 7.36.0 and ≤ 7.36.0≥ 7.37.0 and ≤ 7.37.0≥ 7.37.1 and ≤ 7.37.1≥ 7.38.0 and ≤ 7.38.0≥ 7.39.0 and ≤ 7.39.0≥ 7.40.0 and ≤ 7.40.0≥ 7.41.0 and ≤ 7.41.0≥ 8.8.0 and ≤ 8.8.0≥ 7.42.1 and ≤ 7.42.1≥ 7.43.0 and ≤ 7.43.0≥ 7.44.0 and ≤ 7.44.0≥ 7.45.0 and ≤ 7.45.0≥ 7.46.0 and ≤ 7.46.0≥ 7.47.0 and ≤ 7.47.0≥ 7.47.1 and ≤ 7.47.1≥ 7.48.0 and ≤ 7.48.0≥ 7.49.0 and ≤ 7.49.0≥ 7.49.1 and ≤ 7.49.1≥ 7.50.0 and ≤ 7.50.0≥ 8.1.0 and ≤ 8.1.0≥ 7.82.0 and ≤ 7.82.0≥ 7.83.0 and ≤ 7.83.0≥ 7.83.1 and ≤ 7.83.1≥ 7.84.0 and ≤ 7.84.0≥ 7.85.0 and ≤ 7.85.0≥ 7.86.0 and ≤ 7.86.0≥ 7.87.0 and ≤ 7.87.0≥ 7.88.0 and ≤ 7.88.0≥ 7.88.1 and ≤ 7.88.1≥ 8.0.0 and ≤ 8.0.0≥ 8.0.1 and ≤ 8.0.1≥ 7.65.1 and ≤ 7.65.1≥ 8.1.1 and ≤ 8.1.1≥ 8.1.2 and ≤ 8.1.2≥ 8.2.0 and ≤ 8.2.0≥ 8.2.1 and ≤ 8.2.1≥ 8.3.0 and ≤ 8.3.0≥ 8.4.0 and ≤ 8.4.0≥ 8.5.0 and ≤ 8.5.0≥ 8.6.0 and ≤ 8.6.0≥ 8.7.0 and ≤ 8.7.0≥ 8.7.1 and ≤ 8.7.1≥ 8.9.0 and ≤ 8.9.0≥ 7.80.0 and ≤ 7.80.0≥ 7.65.0 and ≤ 7.65.0≥ 7.65.2 and ≤ 7.65.2≥ 7.65.3 and ≤ 7.65.3≥ 7.66.0 and ≤ 7.66.0≥ 7.67.0 and ≤ 7.67.0≥ 7.68.0 and ≤ 7.68.0≥ 7.69.0 and ≤ 7.69.0≥ 7.69.1 and ≤ 7.69.1≥ 7.70.0 and ≤ 7.70.0≥ 7.71.0 and ≤ 7.71.0≥ 7.71.1 and ≤ 7.71.1≥ 7.72.0 and ≤ 7.72.0≥ 7.73.0 and ≤ 7.73.0≥ 7.74.0 and ≤ 7.74.0≥ 7.75.0 and ≤ 7.75.0≥ 7.76.0 and ≤ 7.76.0≥ 7.76.1 and ≤ 7.76.1≥ 7.77.0 and ≤ 7.77.0≥ 7.78.0 and ≤ 7.78.0≥ 7.79.0 and ≤ 7.79.0≥ 7.79.1 and ≤ 7.79.1≥ 7.81.0 and ≤ 7.81.0	Vulnerable	CVE Program (cve.org) e CISA ADP
Haxx	Libcurl	≥ 7.32.0 and < 8.9.1	Vulnerable	NIST National Vulnerability Database

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector

Network

Attack complexity

Low

Privileges required

None

User interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

Score	Version	Severity	Expl.	Impact	Scored by
6.5	CVSS 3.1	Medium	2.8	3.6	nvd@nist.gov via NIST National Vulnerability Database
6.5	CVSS 3.1	Medium	—	—	GitHub, Inc. via GitHub Security Advisories
6.3	CVSS 3.1	Medium	2.8	3.4	134c704f-9b21-4f2e-91b3-4a467353bcc0 via NIST National Vulnerability Database
6.3	CVSS 3.1	Medium	—	—	CISA-ADP via CVE Program (cve.org) e CISA ADP

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H (score shown at the top: nvd@nist.gov)

Scoring entities (NIST, CNA, ADP) score independently; each score is shown with its origin. For prioritization we use 6.5 (NVD (NIST)) as a conservative provisional reference — not a definitive official score.

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-125 · Out-of-bounds Read

Other CVEs with this weakness →

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).
Correlate service crashes/restarts with inbound traffic; repeated crashes may indicate attempts.

web/proxy/WAF logsnetwork IDS/IPSendpoint telemetry (EDR)crash dumps

Timeline

What happened to this CVE, newest first.

2026
Affected products added · curl/curl
Oct 14, 2026 · CVE Program (cve.org) e CISA ADP
SSVC assessment updated
Oct 14, 2026 · CVE Program (cve.org) e CISA ADP
Record published
Oct 14, 2026
Affected products added · haxx/libcurl
Oct 14, 2026 · NIST National Vulnerability Database
CVSS changed · 6.5
Oct 14, 2026 · NIST National Vulnerability Database
Source status changed · → Modified
Oct 14, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 14, 2026 · Alertas do Telegram
2024
CVE published
Jul 31, 2024 · curl

Source activity

Repeated readings are counted rather than listed.

2× References added · Oct 14, 2026 – Oct 14, 2026
1× Official description updated · Oct 14, 2026 – Oct 14, 2026

References

16 on the record

curl.se/docs/CVE-2024-7264.html
Vendor Advisory, NIST National Vulnerability Database
curl.se/docs/CVE-2024-7264.json
Vendor Advisory, NIST National Vulnerability Database
cert-portal.siemens.com/productcert/html/ssa-398330.html
NIST National Vulnerability Database
security.netapp.com/advisory/ntap-20240828-0008/
NIST National Vulnerability Database
cert-portal.siemens.com/productcert/html/ssa-355557.html
NIST National Vulnerability Database
security.netapp.com/advisory/ntap-20240828-0008
GitHub Security Advisories
cert-portal.siemens.com/productcert/html/ssa-089022.html
NIST National Vulnerability Database
security.netapp.com/advisory/ntap-20241025-0010/
NIST National Vulnerability Database
security.netapp.com/advisory/ntap-20241025-0006/
NIST National Vulnerability Database
hackerone.com/reports/2629968
Exploit, Issue Tracking, Permissions Required, Third Party Advisory, NIST National Vulnerability Database
www.openwall.com/lists/oss-security/2024/07/31/1
Mailing List, NIST National Vulnerability Database
nvd.nist.gov/vuln/detail/CVE-2024-7264
GitHub Security Advisories
security.netapp.com/advisory/ntap-20241025-0006
GitHub Security Advisories
github.com/curl/curl/commit/27959ecce75cdb2809c0bdb3286e60e08fadb519
NIST National Vulnerability Database
security.netapp.com/advisory/ntap-20241025-0010
GitHub Security Advisories
github.com/advisories/GHSA-97c4-2w4v-c7r8
GitHub Security Advisories

Elsewhere on this site

Curl
every CVE for this vendor

Memory corruption
same class

CWE-125
other pages naming this weakness

Related CVEs (same products)

High CVE-2026-92392 HTTP/2 upload Use-After-Free 1d
Critical CVE-2026-9079 stale proxy password leak Jul 3, 2026
High CVE-2026-8932 incomplete mTLS config matching in conn reuse Jul 3, 2026
High CVE-2026-9080 UAF after pause in socket callback Jul 3, 2026
High CVE-2026-9545 exposing HTTP/3 early data Jul 3, 2026
High CVE-2026-9546 sending old referer Jul 3, 2026

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No fixed version, patch or mitigation documented.
No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2024-7264 is "ASN.1 date parser overread", rated Medium. It affects Curl (Curl); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 6.5 describes technical severity. EPSS 17.30% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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