Lookup for vulnerabilities affecting packages.
| Vulnerability_id | VCID-eejx-9f6j-9qej |
| Summary | Matrix libolm before 3.2.3 allows a malicious Matrix homeserver to crash a client (while it is attempting to retrieve an Olm encrypted room key backup from the homeserver) because olm_pk_decrypt has a stack-based buffer overflow. Remote code execution might be possible for some nonstandard build configurations. |
| Aliases |
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| Fixed_packages |
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| Affected_packages |
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| References |
| 0 |
| reference_url |
https://api.first.org/data/v1/epss?cve=CVE-2021-34813 |
| reference_id |
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| reference_type |
|
| scores |
| 0 |
| value |
0.04458 |
| scoring_system |
epss |
| scoring_elements |
0.89087 |
| published_at |
2026-04-18T12:55:00Z |
|
| 1 |
| value |
0.04458 |
| scoring_system |
epss |
| scoring_elements |
0.8902 |
| published_at |
2026-04-01T12:55:00Z |
|
| 2 |
| value |
0.04458 |
| scoring_system |
epss |
| scoring_elements |
0.89028 |
| published_at |
2026-04-02T12:55:00Z |
|
| 3 |
| value |
0.04458 |
| scoring_system |
epss |
| scoring_elements |
0.89043 |
| published_at |
2026-04-04T12:55:00Z |
|
| 4 |
| value |
0.04458 |
| scoring_system |
epss |
| scoring_elements |
0.89045 |
| published_at |
2026-04-07T12:55:00Z |
|
| 5 |
| value |
0.04458 |
| scoring_system |
epss |
| scoring_elements |
0.89062 |
| published_at |
2026-04-08T12:55:00Z |
|
| 6 |
| value |
0.04458 |
| scoring_system |
epss |
| scoring_elements |
0.89067 |
| published_at |
2026-04-09T12:55:00Z |
|
| 7 |
| value |
0.04458 |
| scoring_system |
epss |
| scoring_elements |
0.89079 |
| published_at |
2026-04-11T12:55:00Z |
|
| 8 |
| value |
0.04458 |
| scoring_system |
epss |
| scoring_elements |
0.89075 |
| published_at |
2026-04-12T12:55:00Z |
|
| 9 |
| value |
0.04458 |
| scoring_system |
epss |
| scoring_elements |
0.89072 |
| published_at |
2026-04-13T12:55:00Z |
|
|
| url |
https://api.first.org/data/v1/epss?cve=CVE-2021-34813 |
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| 1 |
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| 2 |
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| 3 |
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| 4 |
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| Weaknesses |
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| Exploits |
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| Severity_range_score | 0.1 - 3 |
| Exploitability | 0.5 |
| Weighted_severity | 2.7 |
| Risk_score | 1.4 |
| Resource_url | http://public2.vulnerablecode.io/vulnerabilities/VCID-eejx-9f6j-9qej |