CVE-2026-77630: pupnp is an SDK for development of UPnP device and control point applications

Q: How do I fix CVE-2026-77630?

pupnp: upgrade to 22.0.4. Exact commands for each OS are on this page.

Q: Is CVE-2026-77630 being exploited?

CVE-2026-77630 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-77630 affect?

CVE-2026-77630 affects pupnp. Severity is high (CVSS 7.5). pupnp is an SDK for development of UPnP device and control point applications. Prior to 22.0.4, parse_hostport in upnp/src/genlib/net/uri/uri.c synchronously calls getaddrinfo while parse_uri is processing attacker-supplied hostnames from i

Q: How urgent is CVE-2026-77630?

Priority 38/100. High severity; Remotely exploitable, no login, no user action

Routine

HIGH 7.5REMOTEUPGRADE

CVE-2026-77630 is a high-severity flaw (CVSS 7.5) affecting pupnp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

pupnp is an SDK for development of UPnP device and control point applications. Prior to 22.0.4, parse_hostport in upnp/src/genlib/net/uri/uri.c synchronously calls getaddrinfo while parse_uri is processing attacker-supplied hostnames from inbound HTTP request targets in upnp/src/genlib/net/http/httpparser.c and GENA SUBSCRIBE CALLBACK headers handled by create_url_list in upnp/src/gena/gena_device.c. A remote unauthenticated peer can choose a slo

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 73%)
CISA exploited list	No
Weakness	CWE-400
Published	2026-10-16
Last modified	2026-10-20

Publisher (CNA): GitHub, Inc. · Vendor: pupnp project

Last updated 2026-10-20 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-10-16 16:21 UTCPublished CVE record published
2026-10-20 19:36 UTCUpdated Record last modified

pupnp project pupnp UPGRADE

Affected: < 22.0.4

Fixed in: 22.0.4

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy pupnp || rpm -q pupnp || pupnp --version

2. UPGRADE to 22.0.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade pupnp

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade pupnp

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-77630?

pupnp: upgrade to 22.0.4. Exact commands for each OS are on this page.

Is CVE-2026-77630 being exploited?

CVE-2026-77630 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-77630 affect?

CVE-2026-77630 affects pupnp. Severity is high (CVSS 7.5). pupnp is an SDK for development of UPnP device and control point applications. Prior to 22.0.4, parse_hostport in upnp/src/genlib/net/uri/uri.c synchronously calls getaddrinfo while parse_uri is processing attacker-supplied hostnames from i

How urgent is CVE-2026-77630?

Priority 38/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-55862 MEDIUM 6.5 UPGRADE pupnp is an SDK for development of UPnP device and control point applications
CVE-2026-57486 HIGH 7.5 UPGRADE pupnp is an SDK for development of UPnP device and control point applications
CVE-2026-57487 HIGH 7.5 UPGRADE pupnp is an SDK for development of UPnP device and control point applications
CVE-2026-57488 HIGH 7.1 UPGRADE pupnp is an SDK for development of UPnP device and control point applications

References

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