CVE-2025-68383
CVE-2025-68383 is a medium-severity vulnerability in Elastic Filebeat with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-1284.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- EPSS exploit prediction: 0% (6th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-204418
- Weakness: CWE-1284
- Affected product: Elastic Filebeat
- Published:
- Last modified:
Description
Improper Validation of Specified Index, Position, or Offset in Input (CWE-1285) in Filebeat Syslog parser and the Libbeat Dissect processor can allow a user to trigger a Buffer Overflow (CAPEC-100) and cause a denial of service (panic/crash) of the Filebeat process via either a malformed Syslog message or a malicious tokenizer pattern in the Dissect configuration.
Frequently asked questions
- What is CVE-2025-68383?
- Improper Validation of Specified Index, Position, or Offset in Input (CWE-1285) in Filebeat Syslog parser and the Libbeat Dissect processor can allow a user to trigger a Buffer Overflow (CAPEC-100) and cause a denial of service (panic/crash) of the Filebeat process via either a malformed Syslog message or a malicious tokenizer pattern in the Dissect configuration.
- How severe is CVE-2025-68383?
- CVE-2025-68383 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2025-68383 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-68383?
- CVE-2025-68383 affects Elastic Filebeat. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2025-68383?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-68383 have an EU (EUVD) identifier?
- Yes. CVE-2025-68383 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-204418.
- When was CVE-2025-68383 published?
- CVE-2025-68383 was published on 2025-12-18 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:elastic:filebeat:*:*:*:*:*:*:*:*
More vulnerabilities in Elastic Filebeat
- CVE-2023-31413 — Low (CVSS 3.3): Filebeat versions through 7.17.9 and 8.6.2 have a flaw in httpjson input that allows the http request Authorization or…
All CVEs affecting Elastic Filebeat →
Other CWE-1284 (Improper Validation of Specified Quantity in Input) vulnerabilities
- CVE-2026-49777 — Critical (CVSS 10.0): Improper Validation of Specified Quantity in Input vulnerability in ShapedPlugin, LLC Product Slider Pro for…
- CVE-2024-8887 — Critical (CVSS 10.0): CIRCUTOR Q-SMT in its firmware version 1.0.4, could be affected by a denial of service (DoS) attack if an attacker with…
- CVE-2022-20699 — Critical (CVSS 10.0): Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker…
- CVE-2021-21960 — Critical (CVSS 10.0): A stack-based buffer overflow vulnerability exists in both the LLMNR functionality of Sealevel Systems, Inc. SeaConnect…
- CVE-2021-21951 — Critical (CVSS 10.0): An out-of-bounds write vulnerability exists in the CMD_DEVICE_GET_SERVER_LIST_REQUEST functionality of the…
- CVE-2021-21950 — Critical (CVSS 10.0): An out-of-bounds write vulnerability exists in the CMD_DEVICE_GET_SERVER_LIST_REQUEST functionality of the…
Browse all CWE-1284 (Improper Validation of Specified Quantity in Input) vulnerabilities →