CVE WatchJul 14, 2026

CVE-2022-37434

zlib through 1.2.12 has a heap-based buffer over-read or buffer overflow in inflate in inflate.c via a large gzip header extra field. NOTE:

CVSS

9.8

Critical

EPSS

16.0%

p97

KEV

—

Exploit Today

0-100

Published: Aug 5, 2022 · Last modified: Jul 14, 2026 · CWE-787 · CWE-120

EPSS · 30d

15.9%EPSS · 30 days16.0%

2026-06-302026-07-16

Technical description

zlib through 1.2.12 has a heap-based buffer over-read or buffer overflow in inflate in inflate.c via a large gzip header extra field. NOTE: only applications that call inflateGetHeader are affected. Some common applications bundle the affected zlib source code but may be unable to call inflateGetHeader (e.g., see the nodejs/node reference).

Official references

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——28Tenda AC23 v16.03.07.44 was discovered to contain a buffer overflow via fromAdvSetMacMtuWan.8d