CVE-2026-57488High· 7.1▾ MidnightPoC availablepupnp is an SDK for development of UPnP device and control point applications. Prior to 2.0.2, raw_to_int in upnp/src/genlib/net/http/httpparser.c parses Content-Length with strtol and casts the resulting long to a 32-bit int before the …
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 39.1 · likelihood 0 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Exploit / PoC code exists
pupnp is an SDK for development of UPnP device and control point applications. Prior to 2.0.2, raw_to_int in upnp/src/genlib/net/http/httpparser.c parses Content-Length with strtol and casts the resulting long to a 32-bit int before the caller stores it as unsigned int. On LP64 systems, values greater than INT_MAX can truncate or wrap, so the HTTP parser can accept a body length different from the declared value. A remote adjacent-network peer can use the resulting parser disagreement to leave bytes to be interpreted as another request in persistent or proxied contexts, or can make a worker wait for an extremely large body and cause denial of service. This issue is fixed in 2.0.2.
pupnp < 2.0.2Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-57486High· 7.5pupnp: NULL pointer dereference in ixmlNode_compare crashes on non-namespaced attributes
CVE-2026-57487High· 7.5libupnp chunked HTTP bodies can bypass g_maxContentLength and be fully buffered
CVE-2026-55862Medium· 6.5pupnp: Incomplete fix for CVE-2021-28302: recursive DOM functions cause stack overflow
CVE-2026-77630High· 7.5pupnp: Denial of service via blocking DNS resolution in parse_uri()/GENA callback parsing
CVE-2022-25315Critical· 9.8In Expat (aka libexpat) before 2.4.5, there is an integer overflow in storeRawNames.
CVE-2022-25314High· 7.5In Expat (aka libexpat) before 2.4.5, there is an integer overflow in copyString.