CVE-2020-28371

9.8 criticalEPSS 1.7%

Critical (9.8) in readytalk avian. EPSS 1.7% chance of exploitation in the next 30 days.

An issue was discovered in ReadyTalk Avian 1.2.0 before 2020-10-27. The FileOutputStream.write() method in FileOutputStream.java has a boundary check to prevent out-of-bounds memory read/write operations. However, an integer overflow leads to bypassing this check and achieving the out-of-bounds access. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.7% chance of exploitation in the next 30 days; higher than 77% of CVEs (scores of 2026-10-31)
CWEs: CWE-190, CWE-787
Published: 2020-11-09
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

readytalk:avian

References

https://github.com/ReadyTalk/avian/commit/0871979b298add320ca63f65060acb7532c8a0dd
https://github.com/ReadyTalk/avian/pull/572
https://github.com/ReadyTalk/avian/commit/0871979b298add320ca63f65060acb7532c8a0dd
https://github.com/ReadyTalk/avian/pull/572

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