CVE-2026-51218
A heap buffer overflow in the TS7Worker::PerformFunctionWrite() function (/core/s7_server.cpp) of snap7 v1.4.3 allows attackers to cause a D
CVSS
7.5
Alto
EPSS
0.4%
p35
KEV
—
Exploit Today
10
0-100
Publicado: 29 jun 2026 · Última mod.: 30 jul 2026 · CWE-122
0.4%EPSS · 30 días0.4%
2026-08-262026-09-23
A heap buffer overflow in the TS7Worker::PerformFunctionWrite() function (/core/s7_server.cpp) of snap7 v1.4.3 allows attackers to cause a Denial of Service (DoS) via a crafted packet.
CVECVSSEPSSKEVRExplotTítuloVis.
CVE-2026-97152——
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——10Net::IDN::Punycode versions before 2.301 for Perl allow a heap buffer overflow via unchecked writes past the output buffer in encode_punycode.
The XS backend builds the encoded label in the string buffer of the scalar it returns, sized from the input length. The loop that emits the digits of each code point checks for room before every write, but the write of the last digit of each round and the write of the terminating NUL do not, so an input whose encoded form fills the buffer writes past its end.
Only the XS backend is affected.
Encoding an attacker-supplied string corrupts the heap.2d