CVE-2017-9847
CVE-2017-9847 is a medium-severity vulnerability in Libtorrent with a CVSS 3.x base score of 5.5. 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-125.
Key facts
- Severity: Medium (CVSS 3.x base score 5.5)
- CVSS v2: 4.3
- EPSS exploit prediction: 1% (61st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-125
- Affected product: Libtorrent
- Published:
- Last modified:
Description
The bdecode function in bdecode.cpp in libtorrent 1.1.3 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via a crafted file.
Frequently asked questions
- What is CVE-2017-9847?
- The bdecode function in bdecode.cpp in libtorrent 1.1.3 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via a crafted file.
- How severe is CVE-2017-9847?
- CVE-2017-9847 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2017-9847 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2017-9847?
- CVE-2017-9847 affects Libtorrent. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2017-9847?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2017-9847 published?
- CVE-2017-9847 was published on 2017-06-24 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:libtorrent:libtorrent:1.1.3:*:*:*:*:*:*:*
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