CVE-2016-20043
CVE-2016-20043 is a high-severity vulnerability in Nrss with a CVSS 3.x base score of 8.4. 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-787.
Key facts
- Severity: High (CVSS 3.x base score 8.4)
- CVSS v4: 8.6
- EPSS exploit prediction: 0% (10th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2016-10841
- Weakness: CWE-787
- Affected product: Nrss
- Published:
- Last modified:
Description
NRSS RSS Reader 0.3.9-1 contains a stack buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying an oversized argument to the -F parameter. Attackers can craft a malicious input with 256 bytes of padding followed by a controlled EIP value to overwrite the return address and achieve code execution.
Frequently asked questions
- What is CVE-2016-20043?
- NRSS RSS Reader 0.3.9-1 contains a stack buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying an oversized argument to the -F parameter. Attackers can craft a malicious input with 256 bytes of padding followed by a controlled EIP value to overwrite the return address and achieve code execution.
- How severe is CVE-2016-20043?
- CVE-2016-20043 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2016-20043 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2016-20043?
- CVE-2016-20043 affects Nrss. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2016-20043?
- 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.
- Does CVE-2016-20043 have an EU (EUVD) identifier?
- Yes. CVE-2016-20043 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2016-10841.
- When was CVE-2016-20043 published?
- CVE-2016-20043 was published on 2026-03-28 and last updated on 2026-06-17.
References
- http://www.codezen.org/nrss/
- https://www.exploit-db.com/exploits/39810
- https://www.vulncheck.com/advisories/nrss-rss-reader-1-stack-buffer-overflow
Affected products (1)
- cpe:2.3:a:nrss:nrss:*:*:*:*:*:*:*:*
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