Security Digest · Vulnerability record
CVE-2025-10284: BBOT's various issues in unarchive.py can cause arbitrary file write and RCE
BBOT's unarchive module could be abused by supplying malicious archives files and when extracted can then perform an arbitrary file write, resulting in remote code execution.
CVSS 9.6 Critical EPSS 0.7% · p53
Should you act?
Critical and remotely reachable
No known exploitation yet, but it is network-reachable without credentials. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.
- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 0.7%, percentile 53: FIRST’s model estimates a 0.7% chance of exploitation activity in the next 30 days, higher than 53% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Needs a user to click or open something. Phishing makes that realistic, but it is not wormable.
- Only applies if your dependency tree includes
bbot(PyPI) < 2.7.0, fixed in 2.7.0. Check your lockfile, including transitive dependencies.
What it is
BBOT's unarchive module could be abused by supplying malicious archives files and when extracted can then perform an arbitrary file write, resulting in remote code execution.
From the GitHub advisory
Summary
Various issues in bbot's unarchive.py allow a malicious site to cause bbot to write arbitrary files to arbitrary locations. This can be used to achieve Remote Code Execution (RCE).
Impact
A user who uses bbot to scan a malicious webserver may have arbitrary code executed on their system.
Weakness type: CWE-22.
Product: bbot (PyPI) · Assigned by: BLSOPS · Published: 2025-10-09
Affected and fixed versions
| Ecosystem | Package | Vulnerable | First fixed |
|---|---|---|---|
| PyPI | bbot | < 2.7.0 | 2.7.0 |
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| BLSOPS, LLC | bbot | 0.0.0 <= 2.6.1 |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| BLSOPS | 3.1 | 9.6 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |
| GitHub | 3.1 | 9.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |
- Attack vector: network (remotely reachable)
- Attack complexity: low
- Privileges required: none (no login)
- User interaction: required (a user must click/open something)
- Scope: changed (can affect other components)
CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.
Exploitation and urgency
- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none, automatable no, technical impact total.
- FIRST EPSS (model of 2026-10-21): 0.71% probability of exploitation activity in the next 30 days; percentile 53.
Timeline
- — CVE record last updated
- — CVE record published by BLSOPS
- — GitHub-reviewed advisory GHSA-fhw8-8v9p-7jp7 published (critical)
Sources and references
Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.
Vulnerability records
- GitHub Advisory GHSA-fhw8-8v9p-7jp7 github.com
- CVE.org record CVE-2025-10284 cve.org
- NVD entry CVE-2025-10284 nvd.nist.gov
Other references from the CVE record and advisory
- blog.blacklanternsecurity.com blog.blacklanternsecurity.com
- github.com github.com
- github.com github.com