Buffer overflow in Openwrt
CVE-2020-7248
libubox in OpenWrt before 18.06.7 and 19.x before 19.07.1 has a tagged binary data JSON serialization vulnerability that may cause a stack based buffer overflow.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.025 (84.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.025 · newest: 0.025 · change: 0.000
Affected products
- Openwrt — versions 19.07.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/openwrt/openwrt/commits/master (Patch, Third Party Advisory)
- openwrt.org/advisory/2020-01-31-2 (Vendor Advisory)
- nvd.nist.gov/vuln/detail/CVE-2020-7248 (US Government Resource, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-7248?
- CVE-2020-7248 is a high-severity vulnerability in Openwrt, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2020-03-16.
- How severe is CVE-2020-7248?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2020-7248 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.