Description
A PGP signature bypass flaw was found in fwupd (all versions), which could lead to the installation of unsigned firmware. As per upstream, a signature bypass is theoretically possible, but not practical because the Linux Vendor Firmware Service (LVFS) is either not implemented or enabled in versions of fwupd shipped with Red Hat Enterprise Linux 7 and 8. The highest threat from this vulnerability is to confidentiality and integrity.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | fwupd | all verions of fwupd | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | fwupd | 1.3.10-1 | — |
| Debian 14 | libjcat | 0.1.3-1 | — |
| Debian 13 | fwupd | 1.3.10-1 | — |
| Debian 13 | libjcat | 0.1.3-1 | — |
| Debian 12 | fwupd | 1.3.10-1 | — |
| Debian 12 | libjcat | 0.1.3-1 | — |
| Debian 9 | fwupd | 0.7.4-2+deb9u1 | DLA-2274-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | fwupd | 1.3.9-4ubuntu0.1 | USN-4395-1 |
| Ubuntu 18.04 LTS | fwupd | 1.2.10-1ubuntu2~ubuntu18.04.5 | USN-4395-1 |
| Ubuntu 16.04 LTS | fwupd | 0.8.3-0ubuntu5.1 | USN-4395-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | appstream-data | 8-20200724.el8 | RHSA-2020:4436 |
| RHEL 8 | fwupd | 1.4.2-4.el8 | RHSA-2020:4436 |
| RHEL 8 | gnome-software | 3.36.1-4.el8 | RHSA-2020:4436 |
| RHEL 8 | libxmlb | 0.1.15-1.el8 | RHSA-2020:4436 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | appstream-data | 8-20200724.el8 | ALSA-2020:4436 |
| AlmaLinux 8 | libxmlb | 0.1.15-1.el8 | ALSA-2020:4436 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | appstream-data | 8-20200724.el8 | RLSA-2020:4436 |
| Rocky Linux 8 | libxmlb | 0.1.15-1.el8 | RLSA-2020:4436 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP2 | fwupd | 1.2.14-5.8.2 | SUSE-SU-2021:1107-1 |
| SLES 15 SP1 | fwupd | 1.0.9-6.3.1 | SUSE-SU-2020:1681-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | fwupd | 1.5.8-1.5 | openSUSE-SU-2024:10774-1 |
| openSUSE Leap 15.2 | fwupd | 1.2.14-lp152.3.9.1 | openSUSE-SU-2021:0522-1 |
| openSUSE Leap 15.1 | fwupd | 1.0.9-lp151.2.3.1 | openSUSE-SU-2020:0849-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | appstream-data | 8-20200724.el8 | ELSA-2020-4436 |
| Oracle Linux 8 | fwupd | 1.4.2-4.0.1.el8 | ELSA-2020-4436 |
| Oracle Linux 8 | gnome-software | 3.36.1-4.el8 | ELSA-2020-4436 |
| Oracle Linux 8 | libxmlb | 0.1.15-1.el8 | ELSA-2020-4436 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
GitHub 1 repository
-
justinsteven/CVE-2020-10759-poc ★ 0 · Jun 6, 2020
Proof of Concept for CVE-2020-10759 (fwupd signature validation bypass)
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 12
- ALSA-2020:4436 Low: gnome-software and fwupd security, bug fix, and enhancement update AlmaLinux Security Advisories · Nov 5, 2026
- RHSA-2020:4436 Red Hat Security Advisory: gnome-software and fwupd security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 27, 2026
- USN-4395-1 fwupd vulnerability Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-2274-1 fwupd - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2020:4436 Low: gnome-software and fwupd security, bug fix, and enhancement update Rocky Linux Security Advisories · Feb 4, 2026
- openSUSE-SU-2020:0849-1 Security update for fwupd SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:0522-1 Security update for fwupd SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10774-1 dfu-tool-1.5.8-1.5 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:1681-1 Security update for fwupd SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1107-1 Security update for fwupd SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2022-0193 Red Hat Enterprise Linux: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 27, 2023
- ELSA-2020-4436 Low: gnome-software and fwupd security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Nov 10, 2020