DEBIAN-CVE-2026-71393

See a problem?
Please try reporting it to the source first.
Source
https://security-tracker.debian.org/tracker/CVE-2026-71393
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-71393.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-71393
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Withdrawn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 sfnt_read_name_table() in src/sfnt.c. The function computes an allocation size using a 32-bit length value from a TrueType font file without overflow checking. On 32-bit targets, a crafted font causes the calculation to wrap, resulting in an undersized heap allocation. A subsequent read() call writes beyond the buffer, causing a heap buffer overflow. 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 can lead to heap memory corruption and potential code execution. This issue was fixed in commit d51a4722316efe0960994d371e1859099894d1ca

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-2026-71393.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-2026-71393.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-2026-71393.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-2026-71393.json"