CVE-2014-8886
CVE-2014-8886 is a high-severity vulnerability in Avm Fritz! Os with a CVSS 3.x base score of 8.1. 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-310.
Key facts
- Severity: High (CVSS 3.x base score 8.1)
- CVSS v2: 9.3
- EPSS exploit prediction: 6% (93rd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-310
- Affected product: Avm Fritz! Os
- Published:
- Last modified:
Description
AVM FRITZ!OS before 6.30 extracts the contents of firmware updates before verifying their cryptographic signature, which allows remote attackers to create symlinks or overwrite critical files, and consequently execute arbitrary code, via a crafted firmware image.
Frequently asked questions
- What is CVE-2014-8886?
- AVM FRITZ!OS before 6.30 extracts the contents of firmware updates before verifying their cryptographic signature, which allows remote attackers to create symlinks or overwrite critical files, and consequently execute arbitrary code, via a crafted firmware image.
- How severe is CVE-2014-8886?
- CVE-2014-8886 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2014-8886 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2014-8886?
- CVE-2014-8886 affects Avm Fritz! Os. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2014-8886?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2014-8886 published?
- CVE-2014-8886 was published on 2016-01-08 and last updated on 2026-06-17.
References
- http://packetstormsecurity.com/files/135161/AVM-FRITZ-Box-Arbitrary-Code-Execution-Via-Firmware-Images.html
- http://seclists.org/fulldisclosure/2016/Jan/12
- http://www.securityfocus.com/archive/1/537246/100/0/threaded
- https://avm.de/service/sicherheitsinfos-zu-updates/
- https://www.redteam-pentesting.de/advisories/rt-sa-2014-014
Affected products (1)
- cpe:2.3:o:avm:fritz\!_os:*:*:*:*:*:*:*:*
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