SIPp through 3.7.7 contains a stack buffer overflow vulnerability in createAuthHeader() when processing SIP authentication challenges with oversized algorithm parameters. A malicious SIP server can send a crafted 401 or 407 challenge to corrupt the stack and crash the client process.
{
"cna_assigner": "VulnCheck",
"cwe_ids": [
"CWE-121"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90779.json"
}"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90779.json"
[
{
"deprecated": false,
"digest": {
"function_hash": "9976261197102184989196215132784419593",
"length": 1216
},
"id": "CVE-2026-90779-08ed8213",
"signature_type": "Function",
"signature_version": "v1",
"source": "https://github.com/sipp/sipp/commit/369b3c187f0ff96f3ec9795650820e80cf17c776",
"target": {
"file": "src/prepare_pcap.c",
"function": "prepare_dtmf"
}
},
{
"deprecated": false,
"digest": {
"line_hashes": [
"253922072885821488052009852498455109366",
"34586638566681625384682327254929602773",
"261283247031706384743989698715409911607",
"298123525681146494129287498515136892063"
],
"threshold": 0.9
},
"id": "CVE-2026-90779-123fd1ee",
"signature_type": "Line",
"signature_version": "v1",
"source": "https://github.com/sipp/sipp/commit/369b3c187f0ff96f3ec9795650820e80cf17c776",
"target": {
"file": "src/prepare_pcap.c"
}
},
{
"deprecated": false,
"digest": {
"line_hashes": [
"252323527340657761663533910122171623862",
"260503324751946141377959341044348678704",
"266384485505044202640964179308171686210",
"50520102943716079966685877244799051816"
],
"threshold": 0.9
},
"id": "CVE-2026-90779-1ac6a568",
"signature_type": "Line",
"signature_version": "v1",
"source": "https://github.com/sipp/sipp/commit/369b3c187f0ff96f3ec9795650820e80cf17c776",
"target": {
"file": "include/prepare_pcap.h"
}
},
{
"deprecated": false,
"digest": {
"function_hash": "272655781295700440033255931196775378875",
"length": 1584
},
"id": "CVE-2026-90779-8e422d75",
"signature_type": "Function",
"signature_version": "v1",
"source": "https://github.com/sipp/sipp/commit/1d4a5622bea34d0b5cdff333e6b5734608e30af7",
"target": {
"file": "src/auth.cpp",
"function": "createAuthHeader"
}
},
{
"deprecated": false,
"digest": {
"line_hashes": [
"124341802793827089946765421589429529441",
"173967929672885655827398598679834291408",
"177159558675663488573672167036968157372",
"98707615778113804829966795241830409397",
"49269686409717794407693772224571075046",
"286482285018539266061095127685398109376",
"314260532159957039417265428906017241000",
"115662733980193889599238957486292395076",
"78259846757919196522980420459721020154",
"187001006497358060075961279763535420451",
"145872507985190503826988008353323061297",
"268644509643034483966382941673200849268",
"298160898338246989194685829568788963747",
"128382950524341504630049657530567576996",
"197850149046904233672957869950140791052",
"16208948970243082542168294146801497050"
],
"threshold": 0.9
},
"id": "CVE-2026-90779-ad0783e3",
"signature_type": "Line",
"signature_version": "v1",
"source": "https://github.com/sipp/sipp/commit/1d4a5622bea34d0b5cdff333e6b5734608e30af7",
"target": {
"file": "src/auth.cpp"
}
}
]
"2026-09-16T08:09:45Z"