CVE-2025-0725 — gzip integer overflow
When libcurl is asked to perform automatic gzip decompression of content-encoded HTTP responses with the `CURLOPT_ACCEPT_ENCODING` option, **using zlib 1.2.0.3 or older**, an attacker-controlled integer overflow would make libcurl perform a buffer overflow.
Who exploits it and how urgent it is
A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.
How the score was calculated
- EPSS 1.3% (30-day exploitation probability)+10
- Technical severity (high)+6
- CISA SSVC: exploitation "poc"+5
- Automatable exploitation (SSVC)+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.
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.
Remediation
Fixes and mitigations documented by the sources — linked to the original advisory.
- Documented patch — github.com (NIST National Vulnerability Database)
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 Curl, Haxx Libcurl…).
- The attack is network-based and needs no privileges: restrict exposure (ACLs, VPN, WAF) until patched.
- Apply the fixed version or the patch documented under Remediation.
- 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 |
≥ 7.13.0 and ≤ 7.13.0≥ 7.16.0 and ≤ 7.16.0≥ 7.15.5 and ≤ 7.15.5≥ 7.15.4 and ≤ 7.15.4≥ 7.15.3 and ≤ 7.15.3≥ 7.15.2 and ≤ 7.15.2≥ 7.15.1 and ≤ 7.15.1≥ 7.15.0 and ≤ 7.15.0 and 154 more≥ 7.14.1 and ≤ 7.14.1≥ 7.14.0 and ≤ 7.14.0≥ 7.13.2 and ≤ 7.13.2≥ 7.13.1 and ≤ 7.13.1≥ 7.21.3 and ≤ 7.21.3≥ 7.12.3 and ≤ 7.12.3≥ 7.12.2 and ≤ 7.12.2≥ 7.12.1 and ≤ 7.12.1≥ 7.12.0 and ≤ 7.12.0≥ 7.11.2 and ≤ 7.11.2≥ 7.11.1 and ≤ 7.11.1≥ 7.11.0 and ≤ 7.11.0≥ 7.10.8 and ≤ 7.10.8≥ 7.10.7 and ≤ 7.10.7≥ 7.10.6 and ≤ 7.10.6≥ 7.10.5 and ≤ 7.10.5≥ 7.16.2 and ≤ 7.16.2≥ 7.21.4 and ≤ 7.21.4≥ 7.21.2 and ≤ 7.21.2≥ 7.21.1 and ≤ 7.21.1≥ 7.21.0 and ≤ 7.21.0≥ 7.20.1 and ≤ 7.20.1≥ 7.20.0 and ≤ 7.20.0≥ 7.19.7 and ≤ 7.19.7≥ 7.19.6 and ≤ 7.19.6≥ 7.19.5 and ≤ 7.19.5≥ 7.19.4 and ≤ 7.19.4≥ 7.19.3 and ≤ 7.19.3≥ 7.19.2 and ≤ 7.19.2≥ 7.19.1 and ≤ 7.19.1≥ 7.19.0 and ≤ 7.19.0≥ 7.18.2 and ≤ 7.18.2≥ 7.18.1 and ≤ 7.18.1≥ 7.18.0 and ≤ 7.18.0≥ 7.17.1 and ≤ 7.17.1≥ 7.17.0 and ≤ 7.17.0≥ 7.16.4 and ≤ 7.16.4≥ 7.16.3 and ≤ 7.16.3≥ 7.16.1 and ≤ 7.16.1≥ 8.11.1 and ≤ 8.11.1≥ 8.11.0 and ≤ 8.11.0≥ 8.10.1 and ≤ 8.10.1≥ 8.10.0 and ≤ 8.10.0≥ 8.9.1 and ≤ 8.9.1≥ 8.9.0 and ≤ 8.9.0≥ 8.8.0 and ≤ 8.8.0≥ 8.7.1 and ≤ 8.7.1≥ 8.7.0 and ≤ 8.7.0≥ 8.6.0 and ≤ 8.6.0≥ 8.5.0 and ≤ 8.5.0≥ 8.4.0 and ≤ 8.4.0≥ 8.3.0 and ≤ 8.3.0≥ 8.2.1 and ≤ 8.2.1≥ 8.2.0 and ≤ 8.2.0≥ 8.1.2 and ≤ 8.1.2≥ 8.1.1 and ≤ 8.1.1≥ 8.1.0 and ≤ 8.1.0≥ 8.0.1 and ≤ 8.0.1≥ 8.0.0 and ≤ 8.0.0≥ 7.88.1 and ≤ 7.88.1≥ 7.88.0 and ≤ 7.88.0≥ 7.87.0 and ≤ 7.87.0≥ 7.86.0 and ≤ 7.86.0≥ 7.85.0 and ≤ 7.85.0≥ 7.84.0 and ≤ 7.84.0≥ 7.83.1 and ≤ 7.83.1≥ 7.83.0 and ≤ 7.83.0≥ 7.82.0 and ≤ 7.82.0≥ 7.81.0 and ≤ 7.81.0≥ 7.80.0 and ≤ 7.80.0≥ 7.79.1 and ≤ 7.79.1≥ 7.79.0 and ≤ 7.79.0≥ 7.78.0 and ≤ 7.78.0≥ 7.77.0 and ≤ 7.77.0≥ 7.76.1 and ≤ 7.76.1≥ 7.76.0 and ≤ 7.76.0≥ 7.75.0 and ≤ 7.75.0≥ 7.74.0 and ≤ 7.74.0≥ 7.73.0 and ≤ 7.73.0≥ 7.72.0 and ≤ 7.72.0≥ 7.71.1 and ≤ 7.71.1≥ 7.71.0 and ≤ 7.71.0≥ 7.70.0 and ≤ 7.70.0≥ 7.69.1 and ≤ 7.69.1≥ 7.69.0 and ≤ 7.69.0≥ 7.68.0 and ≤ 7.68.0≥ 7.67.0 and ≤ 7.67.0≥ 7.66.0 and ≤ 7.66.0≥ 7.65.3 and ≤ 7.65.3≥ 7.65.2 and ≤ 7.65.2≥ 7.65.1 and ≤ 7.65.1≥ 7.65.0 and ≤ 7.65.0≥ 7.64.1 and ≤ 7.64.1≥ 7.64.0 and ≤ 7.64.0≥ 7.63.0 and ≤ 7.63.0≥ 7.62.0 and ≤ 7.62.0≥ 7.61.1 and ≤ 7.61.1≥ 7.61.0 and ≤ 7.61.0≥ 7.60.0 and ≤ 7.60.0≥ 7.59.0 and ≤ 7.59.0≥ 7.58.0 and ≤ 7.58.0≥ 7.57.0 and ≤ 7.57.0≥ 7.56.1 and ≤ 7.56.1≥ 7.56.0 and ≤ 7.56.0≥ 7.55.1 and ≤ 7.55.1≥ 7.55.0 and ≤ 7.55.0≥ 7.54.1 and ≤ 7.54.1≥ 7.54.0 and ≤ 7.54.0≥ 7.53.1 and ≤ 7.53.1≥ 7.53.0 and ≤ 7.53.0≥ 7.52.1 and ≤ 7.52.1≥ 7.52.0 and ≤ 7.52.0≥ 7.51.0 and ≤ 7.51.0≥ 7.50.3 and ≤ 7.50.3≥ 7.50.2 and ≤ 7.50.2≥ 7.50.1 and ≤ 7.50.1≥ 7.50.0 and ≤ 7.50.0≥ 7.49.1 and ≤ 7.49.1≥ 7.49.0 and ≤ 7.49.0≥ 7.48.0 and ≤ 7.48.0≥ 7.47.1 and ≤ 7.47.1≥ 7.47.0 and ≤ 7.47.0≥ 7.46.0 and ≤ 7.46.0≥ 7.45.0 and ≤ 7.45.0≥ 7.44.0 and ≤ 7.44.0≥ 7.43.0 and ≤ 7.43.0≥ 7.42.1 and ≤ 7.42.1≥ 7.42.0 and ≤ 7.42.0≥ 7.41.0 and ≤ 7.41.0≥ 7.40.0 and ≤ 7.40.0≥ 7.39.0 and ≤ 7.39.0≥ 7.38.0 and ≤ 7.38.0≥ 7.37.1 and ≤ 7.37.1≥ 7.37.0 and ≤ 7.37.0≥ 7.36.0 and ≤ 7.36.0≥ 7.35.0 and ≤ 7.35.0≥ 7.34.0 and ≤ 7.34.0≥ 7.33.0 and ≤ 7.33.0≥ 7.32.0 and ≤ 7.32.0≥ 7.31.0 and ≤ 7.31.0≥ 7.30.0 and ≤ 7.30.0≥ 7.29.0 and ≤ 7.29.0≥ 7.28.1 and ≤ 7.28.1≥ 7.28.0 and ≤ 7.28.0≥ 7.27.0 and ≤ 7.27.0≥ 7.26.0 and ≤ 7.26.0≥ 7.25.0 and ≤ 7.25.0≥ 7.24.0 and ≤ 7.24.0≥ 7.23.1 and ≤ 7.23.1≥ 7.23.0 and ≤ 7.23.0≥ 7.22.0 and ≤ 7.22.0≥ 7.21.7 and ≤ 7.21.7≥ 7.21.6 and ≤ 7.21.6≥ 7.21.5 and ≤ 7.21.5 |
Vulnerable | CVE Program (cve.org) e CISA ADP |
| Haxx | Curl | ≥ 7.10.5 and < 8.12.0 | Vulnerable | NIST National Vulnerability Database |
| Haxx | Libcurl | ≥ 7.10.5 and < 8.12.0 | Vulnerable | NIST National Vulnerability Database |
| Netapp | Hci Baseboard Management Controller | versions not specified by the source | Vulnerable | NIST National Vulnerability Database |
| Netapp | Hci H610c Firmware | versions not specified by the source | Vulnerable | NIST National Vulnerability Database |
| Netapp | Hci H610s Firmware | versions not specified by the source | Vulnerable | NIST National Vulnerability Database |
| Netapp | Hci H615c Firmware | versions not specified by the source | Vulnerable | NIST National Vulnerability Database |
| Netapp | Solidfire & Hci Management Node | versions not specified by the source | Vulnerable | NIST National Vulnerability Database |
| Netapp | Solidfire & Hci Storage Node | versions not specified by the source | Vulnerable | NIST National Vulnerability Database |
Attack characteristics
The CVSS vector, decoded. It describes the attack, not your exposure to it.
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 |
|---|---|---|---|---|---|
| 7.3 | CVSS 3.1 | High | 3.9 | 3.4 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 via NIST National Vulnerability Database |
| 7.3 | CVSS 3.1 | High | — | — | GitHub, Inc. via GitHub Security Advisories |
| 7.3 | CVSS 3.1 | High | — | — | CISA-ADP via CVE Program (cve.org) e CISA ADP |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L (score shown at the top: 134c704f-9b21-4f2e-91b3-4a467353bcc0) Weakness MITRE
Weakness class according to MITRE’s CWE catalog.
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.
Timeline
What happened to this CVE, newest first.
- 2026
- Affected products added · curl/curl
- SSVC assessment updated
- Record published
- Fix documented
- Affected products added · netapp/hci baseboard management controller, netapp/hci h610s firmware, netapp/hci h610c firmware, netapp/hci h615c firmw
- CVSS changed · 7.3
- Source status changed · → Modified
- Record created in this database
- 2025
- CVE published
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
13 on the record
- curl.se/docs/CVE-2025-0725.html
- curl.se/docs/CVE-2025-0725.json
- github.com/curl/curl/commit/76f83f0db23846e254d940ec7
- security.netapp.com/advisory/ntap-20250306-0009
- security.netapp.com/advisory/ntap-20250306-0009/
- cert-portal.siemens.com/productcert/html/ssa-398330.html
- www.openwall.com/lists/oss-security/2025/02/06/2
- hackerone.com/reports/2956023
- cert-portal.siemens.com/productcert/html/ssa-089022.html
- nvd.nist.gov/vuln/detail/CVE-2025-0725
- github.com/advisories/GHSA-vvqh-cqpj-5537
- www.openwall.com/lists/oss-security/2025/02/05/3
- www.openwall.com/lists/oss-security/2025/02/06/4
Elsewhere on this site
Related CVEs (same products)
- High CVE-2026-92392 HTTP/2 upload Use-After-Free 1d
- 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
- Critical CVE-2026-9079 stale proxy password leak Jul 3, 2026
- High CVE-2026-9546 sending old referer Jul 3, 2026
- Critical CVE-2026-8927 env-set cross-proxy Digest auth state leak 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 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-2025-0725 is "gzip integer overflow", rated High. It affects Curl (Curl); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 7.3 describes technical severity. EPSS 1.26% 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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