CVE-2026-57159
published 2026-09-04CVE-2026-57159: PJSIP is a free and open source multimedia communication library written in C. Prior to commit 673b978, a remote out-of-bounds read and write can occur in the…
PriorityP351high8.4CVSS 4.0
AVNACLATPPRNUINVCLVIHVAHSCNSINSANEXCRXIRXARXMAVXMACXMATXMPRXMUIXMVCXMVIXMVAXMSCXMSIXMSAXSXAUXRXVXREXUX
EPSS
0.32%
24.9th percentile
PJSIP is a free and open source multimedia communication library written in C. Prior to commit 673b978, a remote out-of-bounds read and write can occur in the SDP negotiator when the remote payload-type map maintenance feature is enabled. assign_pt_and_update_map() in pjmedia/src/pjmedia/sdp_neg.c uses payload-type numbers taken from a remote SDP offer or answer to index fixed-size internal tables without sufficient bounds validation, so a crafted remote SDP can cause memory access outside those tables. The practical impact is memory corruption and denial of service; code execution is not demonstrated. This path is only reached when PJMEDIA_SDP_NEG_MAINTAIN_REMOTE_PT_MAP is enabled. The default is disabled, so default builds are not affected; the feature is an interoperability option that integrating products may enable. This issue has been patched via commit 673b978.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| pjsip | pjproject | < 673b978aab1fe3ab874247be32c871acc880cbeb | 673b978aab1fe3ab874247be32c871acc880cbeb |
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No advisories linked to this vulnerability.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2026-57159 asterisk: SDP parser out-of-bounds write in remote payload-type map maintenance [epel-all]
bugzilla·2026-09-09·CVSS 8.4
CVE-2026-57159 [HIGH] CVE-2026-57159 asterisk: SDP parser out-of-bounds write in remote payload-type map maintenance [epel-all]
CVE-2026-57159 asterisk: SDP parser out-of-bounds write in remote payload-type map maintenance [epel-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
PJSIP is a free and open source multimedia communication library written in C. Prior to commit 673b978, a remote out-of-bounds read and write can occur in the SDP negotiator when the remote payload-type map maintenance feature is enabled. assign_pt_and_update_map() in pjmedia/src/pjmedia/sdp_neg.c uses payload-type numbers taken from a remote SDP offer or answer to index fixed-size internal tables without sufficient bounds validation, so a crafted remote SDP can c
Bugzilla
CVE-2026-57159 asterisk: SDP parser out-of-bounds write in remote payload-type map maintenance [fedora-all]
bugzilla·2026-09-09·CVSS 8.4
CVE-2026-57159 [HIGH] CVE-2026-57159 asterisk: SDP parser out-of-bounds write in remote payload-type map maintenance [fedora-all]
CVE-2026-57159 asterisk: SDP parser out-of-bounds write in remote payload-type map maintenance [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
PJSIP is a free and open source multimedia communication library written in C. Prior to commit 673b978, a remote out-of-bounds read and write can occur in the SDP negotiator when the remote payload-type map maintenance feature is enabled. assign_pt_and_update_map() in pjmedia/src/pjmedia/sdp_neg.c uses payload-type numbers taken from a remote SDP offer or answer to index fixed-size internal tables without sufficient bounds validation, so a crafted remote SDP can
Bugzilla
CVE-2026-57159 pjproject: SDP parser out-of-bounds write in remote payload-type map maintenance [epel-all]
bugzilla·2026-09-09·CVSS 8.4
CVE-2026-57159 [HIGH] CVE-2026-57159 pjproject: SDP parser out-of-bounds write in remote payload-type map maintenance [epel-all]
CVE-2026-57159 pjproject: SDP parser out-of-bounds write in remote payload-type map maintenance [epel-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
PJSIP is a free and open source multimedia communication library written in C. Prior to commit 673b978, a remote out-of-bounds read and write can occur in the SDP negotiator when the remote payload-type map maintenance feature is enabled. assign_pt_and_update_map() in pjmedia/src/pjmedia/sdp_neg.c uses payload-type numbers taken from a remote SDP offer or answer to index fixed-size internal tables without sufficient bounds validation, so a crafted remote SDP can
Bugzilla
CVE-2026-57159 pjproject: SDP parser out-of-bounds write in remote payload-type map maintenance [fedora-all]
bugzilla·2026-09-09·CVSS 8.4
CVE-2026-57159 [HIGH] CVE-2026-57159 pjproject: SDP parser out-of-bounds write in remote payload-type map maintenance [fedora-all]
CVE-2026-57159 pjproject: SDP parser out-of-bounds write in remote payload-type map maintenance [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
PJSIP is a free and open source multimedia communication library written in C. Prior to commit 673b978, a remote out-of-bounds read and write can occur in the SDP negotiator when the remote payload-type map maintenance feature is enabled. assign_pt_and_update_map() in pjmedia/src/pjmedia/sdp_neg.c uses payload-type numbers taken from a remote SDP offer or answer to index fixed-size internal tables without sufficient bounds validation, so a crafted remote SDP ca
Bugzilla
CVE-2026-57159 pjsip: SDP parser out-of-bounds write in remote payload-type map maintenance
bugzilla·2026-09-04·CVSS 8.4
CVE-2026-57159 [HIGH] CVE-2026-57159 pjsip: SDP parser out-of-bounds write in remote payload-type map maintenance
CVE-2026-57159 pjsip: SDP parser out-of-bounds write in remote payload-type map maintenance
PJSIP is a free and open source multimedia communication library written in C. Prior to commit 673b978, a remote out-of-bounds read and write can occur in the SDP negotiator when the remote payload-type map maintenance feature is enabled. assign_pt_and_update_map() in pjmedia/src/pjmedia/sdp_neg.c uses payload-type numbers taken from a remote SDP offer or answer to index fixed-size internal tables without sufficient bounds validation, so a crafted remote SDP can cause memory access outside those tables. The practical impact is memory corruption and denial of service; code execution is not demonstrated. This path is only reached when PJMEDIA_SDP_NEG_MAINTAIN_REMOTE_PT_MAP is enabled. The default is
2026-09-04
Published