Catalogo CVE

CVE-2026-63075

Gravità: High · CVSS 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: Aug 25, 2026, 1:17:49 PM UTC
Updated: Aug 25, 2026, 1:19:26 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.78% · Oct 22, 2026

Issue summary: When OpenSSL processes QUIC traffic from a peer that repeatedly sends ack-eliciting packets while not acknowledging ACK-only responses, the QUIC stack can retain ACK-only packet metadata for the lifetime of the connection. Impact summary: A remote peer that can complete a QUIC handshake can cause connection-scoped memory growth which may lead to Denial of Service through memory exhaustion, especially with sustained traffic or many concurrent QUIC connections. CWE: CWE-770: Allocation of Resources Without Limits or Throttling Description: When the OpenSSL QUIC stack sends an ACK-only packet, there is no requirement by the QUIC protocol that the peer will acknowledge that ACK-only packet (i.e. it is itself not ack-eliciting). However, the OpenSSL implementation stores the metadata about the ACK frames regardless. In and of itself that's ok, but if a malicious peer establishes a connection, and then drives the connection such that ACK-only packets are forced from the OpenSSL implementation peer (i.e., by sending numerous PING frames), and then withholding any subsequent acks for ack-eliciting data, like legitimate data, said malicious peer can force inappropriate memory growth on the OpenSSL peer, potentially leading to a Denial of Service. The fix is to ensure that we account for the transmission of the ACK-only packet in the packet histories high and low watermark without actually storing the ACK-only packet metadata itself. FIPS impact: no The OpenSSL FIPS module is not affected as the QUIC code is outside the FIPS module boundary.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	openssl	sid	`3.6.5-1`	fixed
Debian	openssl	forky	`3.6.5-1`	fixed
Debian	openssl	trixie	`3.5.7-1~deb13u2`	fixed
Debian	openssl	trixie-security	`3.5.7-1~deb13u3`	fixed
Debian	openssl	bookworm	`3.0.20-1~deb12u2`	not affected
Debian	openssl	bookworm-security	`3.0.22-1~deb12u1`	not affected
Ubuntu	openssl	noble	`3.0.13-0ubuntu3.15`	fixed
Ubuntu	libssl-dev	noble	`3.0.13-0ubuntu3.15`	fixed
Ubuntu	libssl-doc	noble	`3.0.13-0ubuntu3.15`	fixed
Ubuntu	libssl3t64	noble	`3.0.13-0ubuntu3.15`	fixed
Cpe	openssl	Not reported	`4.0.2`	fixed
Alpine	openssl	3.22	`3.5.8-r0`	fixed
Alpine	openssl	3.23	`3.5.8-r0`	fixed
Alpine	openssl	3.24	`3.5.8-r0`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	openssl	source	sid	`3.6.4-1`	not yet assigned	Not reported	Not reported
Debian	openssl	source	forky	`3.6.4-1`	not yet assigned	Not reported	Not reported
Debian	openssl	source	trixie	`3.5.7-1~deb13u2`	not yet assigned	Not reported	Not reported
Debian	openssl	source	bookworm	`Not affected`	unimportant	Not reported	Not reported
Ubuntu	openssl	deb	noble	`3.0.13-0ubuntu3.15`	Not reported	Not reported	Not reported
Ubuntu	libssl-dev	deb	noble	`3.0.13-0ubuntu3.15`	Not reported	Not reported	Not reported
Ubuntu	libssl-doc	deb	noble	`3.0.13-0ubuntu3.15`	Not reported	Not reported	Not reported
Ubuntu	libssl3t64	deb	noble	`3.0.13-0ubuntu3.15`	Not reported	Not reported	Not reported
Cpe	openssl	cpe	Not reported	`4.0.2`	Not reported	NVD-CVE-2026-63075	Not reported
Alpine	openssl	apk	3.22	`3.5.8-r0`	Not reported	ALPINE-CVE-2026-63075	Not reported
Alpine	openssl	apk	3.23	`3.5.8-r0`	Not reported	ALPINE-CVE-2026-63075	Not reported
Alpine	openssl	apk	3.24	`3.5.8-r0`	Not reported	ALPINE-CVE-2026-63075	Not reported

OpenFactory catalog packages

[Debian 13 (Trixie)]

[libssl3t64]Interessata
Pacchetto sorgente: [openssl]
Dettagli (6)
- 3.5.6-1~deb13u2 · amd64 · trixie
  Interessata · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
- 3.5.6-1~deb13u2 · arm64 · trixie
  Interessata · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
- 3.5.6-1~deb13u2 · amd64 · trixie-security · Historical version
  Interessata · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
- 3.5.7-1~deb13u2 · amd64 · trixie-security · Historical version
  Corretta · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
- 3.5.7-1~deb13u2 · arm64 · trixie-security
  Corretta · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
- 3.5.7-1~deb13u3 · amd64 · trixie-security
  Corretta · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
[libssl-dev]Interessata
Pacchetto sorgente: [openssl]
Dettagli (6)
- 3.5.6-1~deb13u2 · amd64 · trixie
  Interessata · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
- 3.5.6-1~deb13u2 · arm64 · trixie
  Interessata · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
- 3.5.6-1~deb13u2 · amd64 · trixie-security · Historical version
  Interessata · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
- 3.5.7-1~deb13u2 · amd64 · trixie-security · Historical version
  Corretta · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
- 3.5.7-1~deb13u2 · arm64 · trixie-security
  Corretta · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
- 3.5.7-1~deb13u3 · amd64 · trixie-security
  Corretta · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
[libssl-doc]Interessata
Pacchetto sorgente: [openssl]
Dettagli (6)
- 3.5.6-1~deb13u2 · all · trixie
  Interessata · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
- 3.5.6-1~deb13u2 · all · trixie
  Interessata · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
- 3.5.6-1~deb13u2 · all · trixie-security · Historical version
  Interessata · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
- 3.5.7-1~deb13u2 · all · trixie-security
  Corretta · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
- 3.5.7-1~deb13u2 · all · trixie-security · Historical version
  Corretta · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
- 3.5.7-1~deb13u3 · all · trixie-security
  Corretta · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
[openssl]Interessata
Dettagli (6)
- 3.5.6-1~deb13u2 · amd64 · trixie
  Interessata · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
- 3.5.6-1~deb13u2 · arm64 · trixie
  Interessata · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
- 3.5.6-1~deb13u2 · amd64 · trixie-security · Historical version
  Interessata · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
- 3.5.7-1~deb13u2 · amd64 · trixie-security · Historical version
  Corretta · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
- 3.5.7-1~deb13u2 · arm64 · trixie-security
  Corretta · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
- 3.5.7-1~deb13u3 · amd64 · trixie-security
  Corretta · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
[openssl-provider-fips]Interessata
Pacchetto sorgente: [openssl]
Dettagli (6)
- 3.5.6-1~deb13u2 · amd64 · trixie
  Interessata · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
- 3.5.6-1~deb13u2 · arm64 · trixie
  Interessata · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
- 3.5.6-1~deb13u2 · amd64 · trixie-security · Historical version
  Interessata · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
- 3.5.7-1~deb13u2 · amd64 · trixie-security · Historical version
  Corretta · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
- 3.5.7-1~deb13u2 · arm64 · trixie-security
  Corretta · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
- 3.5.7-1~deb13u3 · amd64 · trixie-security
  Corretta · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
[openssl-provider-legacy]Interessata
Pacchetto sorgente: [openssl]
Dettagli (6)
- 3.5.6-1~deb13u2 · amd64 · trixie
  Interessata · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
- 3.5.6-1~deb13u2 · arm64 · trixie
  Interessata · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
- 3.5.6-1~deb13u2 · amd64 · trixie-security · Historical version
  Interessata · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
- 3.5.7-1~deb13u2 · amd64 · trixie-security · Historical version
  Corretta · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
- 3.5.7-1~deb13u2 · arm64 · trixie-security
  Corretta · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13
- 3.5.7-1~deb13u3 · amd64 · trixie-security
  Corretta · Corretta: 3.5.7-1~deb13u2
  nvd · openssl · debian · 13

[Debian 12 (Bookworm)]

[libssl3]Non interessata
Pacchetto sorgente: [openssl]
Dettagli (6)
- 3.0.20-1~deb12u2 · amd64 · bookworm
  Non interessata
  nvd · openssl · debian · bookworm
- 3.0.20-1~deb12u2 · arm64 · bookworm
  Non interessata
  nvd · openssl · debian · bookworm
- 3.0.20-1~deb12u2 · amd64 · bookworm-security
  Non interessata
  nvd · openssl · debian · bookworm
- 3.0.20-1~deb12u2 · arm64 · bookworm-security
  Non interessata
  nvd · openssl · debian · bookworm
- 3.0.17-1~deb12u2 · amd64 · bookworm-updates
  Non interessata
  nvd · openssl · debian · bookworm
- 3.0.17-1~deb12u2 · arm64 · bookworm-updates
  Non interessata
  nvd · openssl · debian · bookworm
[libssl-dev]Non interessata
Pacchetto sorgente: [openssl]
Dettagli (6)
- 3.0.20-1~deb12u2 · amd64 · bookworm
  Non interessata
  nvd · openssl · debian · bookworm
- 3.0.20-1~deb12u2 · arm64 · bookworm
  Non interessata
  nvd · openssl · debian · bookworm
- 3.0.20-1~deb12u2 · amd64 · bookworm-security
  Non interessata
  nvd · openssl · debian · bookworm
- 3.0.20-1~deb12u2 · arm64 · bookworm-security
  Non interessata
  nvd · openssl · debian · bookworm
- 3.0.17-1~deb12u2 · amd64 · bookworm-updates
  Non interessata
  nvd · openssl · debian · bookworm
- 3.0.17-1~deb12u2 · arm64 · bookworm-updates
  Non interessata
  nvd · openssl · debian · bookworm
[libssl-doc]Non interessata
Pacchetto sorgente: [openssl]
Dettagli (6)
- 3.0.20-1~deb12u2 · all · bookworm
  Non interessata
  nvd · openssl · debian · bookworm
- 3.0.20-1~deb12u2 · all · bookworm
  Non interessata
  nvd · openssl · debian · bookworm
- 3.0.20-1~deb12u2 · all · bookworm-security
  Non interessata
  nvd · openssl · debian · bookworm
- 3.0.20-1~deb12u2 · all · bookworm-security
  Non interessata
  nvd · openssl · debian · bookworm
- 3.0.17-1~deb12u2 · all · bookworm-updates
  Non interessata
  nvd · openssl · debian · bookworm
- 3.0.17-1~deb12u2 · all · bookworm-updates
  Non interessata
  nvd · openssl · debian · bookworm
[openssl]Non interessata
Dettagli (6)
- 3.0.20-1~deb12u2 · amd64 · bookworm
  Non interessata
  nvd · openssl · debian · bookworm
- 3.0.20-1~deb12u2 · arm64 · bookworm
  Non interessata
  nvd · openssl · debian · bookworm
- 3.0.20-1~deb12u2 · amd64 · bookworm-security
  Non interessata
  nvd · openssl · debian · bookworm
- 3.0.20-1~deb12u2 · arm64 · bookworm-security
  Non interessata
  nvd · openssl · debian · bookworm
- 3.0.17-1~deb12u2 · amd64 · bookworm-updates
  Non interessata
  nvd · openssl · debian · bookworm
- 3.0.17-1~deb12u2 · arm64 · bookworm-updates
  Non interessata
  nvd · openssl · debian · bookworm

Osservato: Oct 24, 2026, 4:16:19 AM UTC

Riferimenti

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]