JLSEC-2026-1155 Issue summary: A signed integer overflow when sizing the destination buffer for Unicode output in...

Issue summary: A signed integer overflow when sizing the destination buffer for Unicode output in ASN1mbstringncopy can lead to a heap buffer overflow. Impact summary: A heap buffer overflow may lead to a crash or possibly attacker controlled code execution or other undefined behaviour. In...

K000162738: giflib vulnerability CVE-2026-26740

Security Advisory Description Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block without validating its allocated size. CVE-2026-26740 Impact There is no impact; F...

CVE-2026-18607

A security vulnerability has been detected in Wavlink WN572, WN570H, WN573, WN529, WN530, WN531, WN535, etc. WN529, WN530, WN531, WN535, WN536, WN551, WN557 and NU516 up to 20260609. Affected by this issue is the function strcpy of the file upload.cgi of the component lighttpd. The manipulation o...

CVE-2026-18607

The CVE-2026-18607 affects Wavlink devices including WN572, WN570H, WN573, WN529, WN530, WN531, WN535, WN536, WN551, WN557, and NU516 (firmware up to 20260609). The vulnerability targets the strcpy function in lighttpd’s file upload.cgi, where manipulating the HTTP_COOKIE argument triggers a stac...

Security update for rrdtool

This update for rrdtool fixes the following issue: CVE-2026-43958: stack buffer overflow in rrdcached handlerequestcreate can lead to local privilege escalation via unbounded DS/RRA arguments bsc1267243. Patch Instructions: To install this SUSE update use the SUSE recommended installation methods...

Important: Red Hat Security Advisory: libtiff security, bug fix, and enhancement update

An update for libtiff is now available for Red Hat Enterprise Linux 10.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available fo...

RLSA-2026:47184 Important: libtiff security update

The libtiff packages contain a library of functions for manipulating Tagged Image File Format TIFF files. Security Fixes: libtiff: libtiff: Heap-based buffer overflow via crafted PixarLog-compressed TIFF image CVE-2026-12912 For more details about the security issues, including the impact, a CVSS...

gawk: Gawk: Buffer overflow in ftype() routine may lead to code execution or denial of service

A flaw was found in gawk. A buffer overflow vulnerability exists in the ftype routine, located in the extension/readdir.c program file. This vulnerability could allow an attacker to crash the program, resulting in a denial of service. It may also potentially lead to arbitrary code execution, thou...

xorg: X11: xserver: X.org: glamor Font Atlas Heap Buffer Overflow

A flaw was found in the glamorfontget function of the xorg-x11-server. This vulnerability, a heap buffer overflow, occurs when the server processes a specially crafted PCF font file where individual glyph metrics exceed the declared maximum bounds. An authenticated X client can exploit this by...

libXfont2: PCF Font Parsing Heap Buffer Overflow

A flaw was found in libXfont2. A specially crafted PCF Portable Compiled Format font file, when processed by libXfont2, can lead to a buffer overflow. This occurs because the font parsing process does not properly validate the size of a bitmap buffer against the glyph metrics provided in the...

gstreamer: gstreamer: DTLS certificate Subject DN stack buffer overflow in openssl_verify_callback

A stack buffer overflow vulnerability was found in GStreamer's DTLS plugin. During a DTLS handshake, the peer certificate Subject Distinguished Name is printed into a fixed-size 2048-byte stack buffer without bounds checking. A remote unauthenticated attacker can send a certificate with an...

CVE-2026-6694

A flaw was found in GIMP's file-png plugin. A remote attacker can exploit this by crafting a malicious Animated Portable Network Graphics APNG image containing an oversized tRNS chunk. This can lead to a stack-based buffer overflow CWE-121, causing the file-png plugin to crash and resulting in a...

CVE-2026-18588

A vulnerability has been found in Wavlink WL-NU516U1 708c073-mt7628. This affects the function fgets of the file nas.cgi. The manipulation of the argument CONTENTLENGTH leads to stack-based buffer overflow. Remote exploitation of the attack is possible. You should upgrade the affected component...

EUVD-2026-52167

A vulnerability has been found in Wavlink WL-NU516U1 708c073-mt7628. This affects the function fgets of the file nas.cgi. The manipulation of the argument CONTENTLENGTH leads to stack-based buffer overflow. Remote exploitation of the attack is possible. You should upgrade the affected component...

CVE-2026-18588 Wavlink WL-NU516U1 nas.cgi fgets stack-based overflow

A vulnerability has been found in Wavlink WL-NU516U1 708c073-mt7628. This affects the function fgets of the file nas.cgi. The manipulation of the argument CONTENTLENGTH leads to stack-based buffer overflow. Remote exploitation of the attack is possible. You should upgrade the affected component...

postgresql: PostgreSQL libpq: Buffer overflow allows server superuser to overwrite client stack memory

A flaw was found in PostgreSQL libpq. A server superuser can exploit a buffer overflow vulnerability in the PQfn function, which is used by client functions such as loexport, loread, lolseek64, and lotell64. This allows the superuser to send an arbitrarily large response, overwriting the client's...

Important: Red Hat Security Advisory: postgresql security update

An update for postgresql is now available for Red Hat Enterprise Linux 7 Extended Lifecycle Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available...

CVE-2026-6694

CVE-2026-6694 affects GIMP’s file-png plugin. A crafted APNG with an oversized tRNS chunk may trigger a stack-based buffer overflow (CWE-121), causing the plugin to crash and resulting in a Denial of Service. The available documents specify the vulnerability and impact but do not provide remediat...

xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: stack buffer overflow in font alias resolution due to libXfont2 name length mismatch

A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. A mismatch between the X server and the libXfont2 library's maximum font name length can cause a stack buffer overflow during font alias resolution. The server allocates a 256 byte stack buffer but libXfont2's alias...

xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: stack buffer overflow in XKB SetMap request via mapWidths indexing

A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. XkbSetMapChecks declares a fixed-size stack buffer mapWidths256 indexed by key type index. The helper function CheckKeyTypes writes to this buffer at a client-controlled offset, allowing a stack buffer overflow. This...