Security Digest · Vulnerability record
CVE-2025-48459: Apache IoTDB: Deserialization of untrusted Data
Deserialization of Untrusted Data vulnerability in Apache IoTDB.
CVSS 9.3 Critical EPSS 0.5% · p41
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 0.5%, percentile 41: FIRST’s model estimates a 0.5% chance of exploitation activity in the next 30 days, higher than 41% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes
org.apache.iotdb:iotdb-confignode(Maven) >= 1.0.0, < 2.0.5, fixed in 2.0.5;apache-iotdb(PyPI) >= 1.0.0, < 2.0.5, fixed in 2.0.5. Check your lockfile, including transitive dependencies.
What it is
Deserialization of Untrusted Data vulnerability in Apache IoTDB. This issue affects Apache IoTDB: from 1.0.0 before 2.0.5. Users are recommended to upgrade to version 2.0.5, which fixes the issue.
From the GitHub advisory
Summary
Apache IoTDB deserializes data from external inputs without sufficient validation, allowing attacker-controlled serialized objects to be processed. In environments where a compatible gadget chain is reachable, this can be abused to execute arbitrary code or alter server state; at minimum it enables high-impact integrity and confidentiality compromise on the IoTDB process.
Affected
Apache IoTDB from 1.0.0 before 2.0.5.
Remediation
Weakness type: CWE-502.
Product: org.apache.iotdb:iotdb-confignode (Maven) · Assigned by: apache · Published: 2025-09-24
Affected and fixed versions
| Ecosystem | Package | Vulnerable | First fixed |
|---|---|---|---|
| Maven | org.apache.iotdb:iotdb-confignode | >= 1.0.0, < 2.0.5 | 2.0.5 |
| PyPI | apache-iotdb | >= 1.0.0, < 2.0.5 | 2.0.5 |
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| Apache Software Foundation | Apache IoTDB | 1.0.0 < 2.0.5 |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADP | 3.1 | 5.3 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| GitHub | 4.0 | 9.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N |
- Attack vector: network (remotely reachable)
- Attack complexity: low
- Attack requirements: none
- Privileges required: none (no login)
- User interaction: none
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 partial.
- FIRST EPSS (model of 2026-10-21): 0.49% probability of exploitation activity in the next 30 days; percentile 41.
Timeline
- — CVE record published by apache
- — GitHub-reviewed advisory GHSA-776q-jw43-fhjx published (critical)
- — CVE record last updated
Sources and references
Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.
Vendor and project advisories, patches
- lists.apache.org lists.apache.org
Vulnerability records
- GitHub Advisory GHSA-776q-jw43-fhjx github.com
- CVE.org record CVE-2025-48459 cve.org
- NVD entry CVE-2025-48459 nvd.nist.gov
Other references from the CVE record and advisory
- openwall.com openwall.com
- github.com github.com
- github.com github.com