gnupg: verification DoS due to a malicious subkey in the keyring
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| GnuPG | GnuPG | unaffected |
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No data.
| Vendor | Product | Versions |
|---|---|---|
| Gnupg | Gnupg | — |
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2025-6762 | In GnuPG before 2.5.5, if a user chooses to import a certificate with certain crafted subkey data that lacks a valid backsig or that has incorrect usage flags, the user loses the ability to verify signatures made from certain other signing keys, aka a "verification DoS." |
Ubuntu USN |
USN-7412-1 | GnuPG vulnerability |
Ubuntu USN |
USN-7412-3 | GnuPG vulnerability |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.194% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:gnupg:gnupg:*:*:*:*:*:*:*:* |
| Type | Values Removed | Values Added |
|---|---|---|
| Title | gnupg: verification DoS due to a malicious subkey in the keyring | |
| References |
| |
| Metrics |
threat_severity
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threat_severity
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| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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| Type | Values Removed | Values Added |
|---|---|---|
| Description | In GnuPG before 2.5.5, if a user chooses to import a certificate with certain crafted subkey data that lacks a valid backsig or that has incorrect usage flags, the user loses the ability to verify signatures made from certain other signing keys, aka a "verification DoS." | |
| Weaknesses | CWE-754 | |
| References |
| |
| Metrics |
cvssV3_1
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