miniupnpc through 2.3.3 contains a one-byte heap out-of-bounds read vulnerability in the minixml parseelt function's namespace-prefix handling that skips an end-of-buffer check after advancing past ':'. A malicious or spoofed UPnP gateway on the local network can send a device description or SOAP reply ending in ':' within an element name to crash the client.

miniupnpc through 2.3.3 contains a one-byte heap out-of-bounds read vulnerability in the minixml parseatt function that allows malicious UPnP gateways to read past buffer bounds via crafted replies. Attackers on the local network can spoof a gateway serving device descriptions or SOAP responses ending in '=' to crash the client.

Last updated 7 September 2026

An issue was discovered in GetByte function in miniupnp ngiflib version 0.4, allows local attackers to cause a denial of service (DoS) via crafted .gif file (infinite loop).

ngiflib commit 84a75 was discovered to contain a segmentation violation via the function SDLLoadAnimatedGif at ngiflibSDL.c. This vulnerability is triggered when running the program SDLaffgif.

ngiflib commit fb271 was discovered to contain a segmentation violation via the function "main" at gif2tag.c. This vulnerability is triggered when running the program gif2tga.

ngiflib commit 5e7292 was discovered to contain an infinite loop via the function DecodeGifImg at ngiflib.c.

An issue was discovered in ngiflib 0.4. There is SEGV in SDLLoadAnimatedGif when use SDLaffgif. poc : ./SDLaffgif CAfile20

ngiflib 0.4 has a heap overflow in GetByteStr() at ngiflib.c:108 in NGIFLIBNOFILE mode, GetByteStr() copy memory buffer without checking the boundary.

ngiflib 0.4 has a heap overflow in GetByte() at ngiflib.c:70 in NGIFLIBNOFILE mode, GetByte() reads memory buffer without checking the boundary.

ngiflib 0.4 has a heap-based buffer over-read in GifIndexToTrueColor in ngiflib.c.

MiniUPnP ngiflib 0.4 has a NULL pointer dereference in GifIndexToTrueColor in ngiflib.c via a file that lacks a palette.

MiniUPnPd has information disclosure use of snprintf()

ngiflib 0.4 has a heap-based buffer overflow in WritePixel() in ngiflib.c when called from DecodeGifImg, because deinterlacing for small pictures is mishandled.

ngiflib 0.4 has a heap-based buffer overflow in WritePixels() in ngiflib.c when called from DecodeGifImg, because deinterlacing for small pictures is mishandled.

A Denial Of Service vulnerability in MiniUPnP MiniUPnPd through 2.1 exists due to a NULL pointer dereference in copyIPv6IfDifferent in pcpserver.c.

A Denial Of Service vulnerability in MiniUPnP MiniUPnPd through 2.1 exists due to a NULL pointer dereference in GetOutboundPinholeTimeout in upnpsoap.c for remport.

A Denial Of Service vulnerability in MiniUPnP MiniUPnPd through 2.1 exists due to a NULL pointer dereference in GetOutboundPinholeTimeout in upnpsoap.c for intport.

The updateDevice function in minissdpd.c in MiniUPnP MiniSSDPd 1.4 and 1.5 allows a remote attacker to crash the process due to a Use After Free vulnerability.

ngiflib.c in MiniUPnP ngiflib 0.4 has an infinite loop in DecodeGifImg and LoadGif.

GifIndexToTrueColor in ngiflib.c in MiniUPnP ngiflib 0.4 has a Segmentation fault.

ngiflib.c in MiniUPnP ngiflib 0.4 has a heap-based buffer over-read in GifIndexToTrueColor.

ngiflib.c in MiniUPnP ngiflib 0.4 has a stack-based buffer overflow in DecodeGifImg.

The DecodeGifImg function in ngiflib.c in MiniUPnP ngiflib 0.4 does not consider the bounds of the pixels data structure, which allows remote attackers to cause a denial of service (WritePixels heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted GIF file, a different vulnerability than CVE-2018-10677.

The DecodeGifImg function in ngiflib.c in MiniUPnP ngiflib 0.4 lacks certain checks against width and height, which allows remote attackers to cause a denial of service (WritePixels heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted GIF file.

Last updated 25 August 2025

Integer signedness error in MiniUPnP MiniUPnPc v1.4.20101221 through v2.0 allows remote attackers to cause a denial of service or possibly have unspecified other impact.

The processRequest function in minissdpd.c in MiniSSDPd 1.2.20130907-3 allows local users to cause a denial of service (invalid free and daemon crash) via vectors related to error handling.

The processRequest function in minissdpd.c in MiniSSDPd 1.2.20130907-3 allows local users to cause a denial of service (out-of-bounds memory access and daemon crash) via vectors involving a negative length value.

Buffer overflow in the IGDstartelt function in igddescparse.c in the MiniUPnP client (aka MiniUPnPc) before 1.9.20150917 allows remote UPNP servers to cause a denial of service (application crash) and possibly execute arbitrary code via an "oversized" XML element name.