CVE-2020-25022

CRITICALNVD 9.89.8—

9.8

An issue was discovered in Noise-Java through 2020-08-27. AESGCMFallbackCipherState.encryptWithAd() allows out-of-bounds access.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 70.8%
KEV: Not listed

Published

September 4, 2020

Last Modified

November 21, 2024

Advisory Details (3)

Auto-updated May 30, 2026

🔬 Proof of concept available. Upstream fix merged — awaiting tagged release. Sources: github_commit, github_pr.

github_pr

Boundary checks improvement: detect when plaintextOffset + length is greater than length

Fix merged in rweather/noise-java PR #12 on 2020-09-03 — awaiting tagged release

https://github.com/rweather/noise-java/pull/12

github_commit

commit 18e86b6f8bea (rweather/noise-java)

Fix landed in rweather/noise-java commit 18e86b6f8bea — awaiting tagged release

https://github.com/rweather/noise-java/commit/18e86b6f8bea7326934109aa9ffa705ebf4bde90

generic🟡 PoC Available

Full Disclosure: Noise-Java AESGCMFallbackCipherState.encryptWithAd() insufficient boundary checks

http://seclists.org/fulldisclosure/2020/Sep/11

Weakness Classification(3)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 16× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-06 13:45 UTCepss_batch
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2026-05-27 13:39 UTCepss_batch

Frequently asked(5)

What is CVE-2020-25022?

CVE-2020-25022 is a critical vulnerability published on September 4, 2020. An issue was discovered in Noise-Java through 2020-08-27. AESGCMFallbackCipherState.encryptWithAd() allows out-of-bounds access.

When was CVE-2020-25022 disclosed?

CVE-2020-25022 was first published in the National Vulnerability Database on September 4, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2020-25022 actively exploited?

CVE-2020-25022 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 70.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-25022?

CVE-2020-25022 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2020-25022?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-25022, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2020-25022

📅 Published

🔄 Last Modified

📋 Advisory Details (3)