DEBIAN-CVE-2026-71392

Source
https://security-tracker.debian.org/tracker/CVE-2026-71392
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-71392.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-71392
Upstream
Withdrawn
2026-08-13T20:00:37Z
Published
2026-08-10T11:17:28Z
Modified
2026-08-13T20:00:37Z
Severity
  • 5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
[none]
Details

GNU Emacs for Android is vulnerable to an integer overflow in the sfnt_read_cmap_format_12() function in src/sfnt.c. When processing a crafted TrueType font file, an unguarded addition in the xmalloc allocation call wraps around on 32-bit builds, causing a heap buffer overflow write. An attacker can deliver a malicious font file via email, EWW (Emacs Web Wowser), or documents with custom faces, causing Emacs to load it. This results in heap memory corruption that can lead to code execution. This issue was fixed in commit c4e20777c26548722a37b03db93243e83a0d6188

References

Affected packages

Debian:11 / emacs

Package

Name
emacs
Purl
pkg:deb/debian/emacs?arch=source&distro=bullseye

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1:27.*
1:27.1+1-3.1
1:27.1+1-3.1+deb11u1
1:27.1+1-3.1+deb11u2
1:27.1+1-3.1+deb11u3
1:27.1+1-3.1+deb11u4
1:27.1+1-3.1+deb11u5
1:27.1+1-3.1+deb11u6
1:28.*
1:28.1+1-1
1:28.1+1-2
1:28.1+1-2+m68k
1:28.1+1-3
1:28.1+1-4
1:28.2+1-1
1:28.2+1-2
1:28.2+1-3
1:28.2+1-4
1:28.2+1-5
1:28.2+1-6
1:28.2+1-7
1:28.2+1-8
1:28.2+1-9
1:28.2+1-10
1:28.2+1-11
1:28.2+1-12
1:28.2+1-13
1:28.2+1-14
1:28.2+1-15
1:28.2+1-16
1:29.*
1:29.1+1-1
1:29.1+1-2
1:29.1+1-3
1:29.1+1-4
1:29.1+1-5~bpo12+1
1:29.1+1-5
1:29.2+1-1
1:29.2+1-2~bpo12+1
1:29.2+1-2
1:29.3+1-1
1:29.3+1-2~bpo12+1
1:29.3+1-2
1:29.3+1-3~bpo12+1
1:29.3+1-3
1:29.4+1-1
1:29.4+1-2~bpo12+1
1:29.4+1-2
1:29.4+1-3
1:29.4+1-4~bpo12+1
1:29.4+1-4
1:29.4+1-5
1:29.4+1-6
1:29.4+1-6+alpha
1:30.*
1:30.1+1-1
1:30.1+1-2
1:30.1+1-3~bpo12+1
1:30.1+1-3
1:30.1+1-4~bpo12+1
1:30.1+1-4
1:30.1+1-5~bpo12+1
1:30.1+1-5
1:30.1+1-6~bpo12+1
1:30.1+1-6
1:30.1+1-7
1:30.1+1-8
1:30.1+1-9
1:30.2+1-1
1:30.2+1-2
1:30.2+1-3
1:30.2+1-4
1:30.2+1-5
1:30.2+1-6
1:30.2+1-7
1:30.2+1-8
1:30.2+1-9
1:30.2+1-10

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-71392.json"

Debian:12 / emacs

Package

Name
emacs
Purl
pkg:deb/debian/emacs?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1:28.*
1:28.2+1-15
1:28.2+1-15+deb12u1
1:28.2+1-15+deb12u2
1:28.2+1-15+deb12u3
1:28.2+1-15+deb12u4
1:28.2+1-16
1:29.*
1:29.1+1-1
1:29.1+1-2
1:29.1+1-3
1:29.1+1-4
1:29.1+1-5~bpo12+1
1:29.1+1-5
1:29.2+1-1
1:29.2+1-2~bpo12+1
1:29.2+1-2
1:29.3+1-1
1:29.3+1-2~bpo12+1
1:29.3+1-2
1:29.3+1-3~bpo12+1
1:29.3+1-3
1:29.4+1-1
1:29.4+1-2~bpo12+1
1:29.4+1-2
1:29.4+1-3
1:29.4+1-4~bpo12+1
1:29.4+1-4
1:29.4+1-5
1:29.4+1-6
1:29.4+1-6+alpha
1:30.*
1:30.1+1-1
1:30.1+1-2
1:30.1+1-3~bpo12+1
1:30.1+1-3
1:30.1+1-4~bpo12+1
1:30.1+1-4
1:30.1+1-5~bpo12+1
1:30.1+1-5
1:30.1+1-6~bpo12+1
1:30.1+1-6
1:30.1+1-7
1:30.1+1-8
1:30.1+1-9
1:30.2+1-1
1:30.2+1-2
1:30.2+1-3
1:30.2+1-4
1:30.2+1-5
1:30.2+1-6
1:30.2+1-7
1:30.2+1-8
1:30.2+1-9
1:30.2+1-10

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-71392.json"

Debian:13 / emacs

Package

Name
emacs
Purl
pkg:deb/debian/emacs?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1:30.*
1:30.1+1-6
1:30.1+1-7
1:30.1+1-8
1:30.1+1-9
1:30.2+1-1
1:30.2+1-2
1:30.2+1-3
1:30.2+1-4
1:30.2+1-5
1:30.2+1-6
1:30.2+1-7
1:30.2+1-8
1:30.2+1-9
1:30.2+1-10

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-71392.json"

Debian:14 / emacs

Package

Name
emacs
Purl
pkg:deb/debian/emacs?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1:30.*
1:30.1+1-6
1:30.1+1-7
1:30.1+1-8
1:30.1+1-9
1:30.2+1-1
1:30.2+1-2
1:30.2+1-3
1:30.2+1-4
1:30.2+1-5
1:30.2+1-6
1:30.2+1-7
1:30.2+1-8
1:30.2+1-9
1:30.2+1-10

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-71392.json"