CVE-2025-27779: Applio is a voice conversion tool

Q: How do I fix CVE-2025-27779?

applio: upgrade to newer than 3.2.8-bugfix. Exact commands for each OS are on this page.

Q: Is CVE-2025-27779 being exploited?

CVE-2025-27779 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-2025-27779 affect?

CVE-2025-27779 affects applio. Severity is critical (CVSS 9.8). Applio is a voice conversion tool. Versions 3.2.8-bugfix and prior are vulnerable to unsafe deserialization in `model_blender.py` lines 20 and 21. `model_fusion_a` and `model_fusion_b` from voice_blender.py take user-supplied input (e.g. a

Q: How urgent is CVE-2025-27779?

Priority 54/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 9.8REMOTEUPGRADE

CVE-2025-27779 is a critical-severity flaw (CVSS 9.8) affecting applio. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Applio is a voice conversion tool. Versions 3.2.8-bugfix and prior are vulnerable to unsafe deserialization in `model_blender.py` lines 20 and 21. `model_fusion_a` and `model_fusion_b` from voice_blender.py take user-supplied input (e.g. a path to a model) and pass that value to the `run_model_blender_script` and later to `model_blender` function, which loads these two models with `torch.load` in `model_blender.py (on lines 20-21 in 3.2.8-bugfix)

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.9% (top 40%)
CISA exploited list	No
Weakness	CWE-502
Published	2025-03-19
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: applio

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-03-19 21:15 UTCPublished CVE record published
2026-06-17 09:04 UTCUpdated Record last modified

applio applio UPGRADE

Affected: <= 3.2.8-bugfix

Fixed in: newer than 3.2.8-bugfix

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 3.2.8-bugfix (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade applio

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-2025-27779?

applio: upgrade to newer than 3.2.8-bugfix. Exact commands for each OS are on this page.

Is CVE-2025-27779 being exploited?

CVE-2025-27779 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-2025-27779 affect?

CVE-2025-27779 affects applio. Severity is critical (CVSS 9.8). Applio is a voice conversion tool. Versions 3.2.8-bugfix and prior are vulnerable to unsafe deserialization in `model_blender.py` lines 20 and 21. `model_fusion_a` and `model_fusion_b` from voice_blender.py take user-supplied input (e.g. a

How urgent is CVE-2025-27779?

Priority 54/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2025-27787 HIGH 7.5 UPGRADE Applio is a voice conversion tool
CVE-2025-27786 CRITICAL 9.1 UPGRADE Applio is a voice conversion tool
CVE-2025-27785 HIGH 7.5 UPGRADE Applio is a voice conversion tool
CVE-2025-27784 HIGH 7.5 UPGRADE Applio is a voice conversion tool
CVE-2025-27783 CRITICAL 9.8 UPGRADE Applio is a voice conversion tool

References

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