CVE WatchJul 14, 2026

CVE-2016-9842

The inflateMark function in inflate.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact via vectors involving

CVSS

8.8

High

EPSS

5.2%

p92

KEV

—

Exploit Today

0-100

Published: May 23, 2017 · Last modified: Jul 14, 2026 · CWE-1335

EPSS · 30d

5.2%EPSS · 30 days5.2%

2026-06-302026-07-16

Technical description

The inflateMark function in inflate.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact via vectors involving left shifts of negative integers.

Official references

Related CVEs

CVECVSSEPSSKEVRExploitTitleMod.

CVE-2026-50726.5 MED

9.3%

——3A bitwise shift vulnerability in Zephyr's PTP subsystem allows a remote attacker to cause undefined behavior and potential system crashes. An attacker sends a crafted PTP_MSG_MANAGEMENT message to set an unvalidated negative log_announce_interval value in the port's data set. When a subsequent PTP_MSG_ANNOUNCE message is processed, port_timer_set_timeout_random computes a timeout as NSEC_PER_SEC >> -log_seconds; if the attacker-supplied value is sufficiently negative (e.g., -127), the shift amount exceeds the 64-bit integer width, triggering undefined behavior in C. This can cause a system crash via a compiler-generated illegal instruction trap on some architectures, or produce an erroneous zero timeout leading to resource starvation loops or other logical errors.8d