CVE-2016-20043

HIGHNVD 7.88.4▲
EchelonGraph scoreMEDIUM confidence

Score 8.4 from GitHub Security Advisory (severity: HIGH) published 2026-03-28. NVD baseline CVSS 7.8; sources differ by 0.6.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
8.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
7.8
EG Score
8.4(medium)
EG Risk
54(Track*)
EG Risk 54/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity84% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
10%
KEV
Not listed

Published

March 28, 2026

Last Modified

June 17, 2026

Advisory Details (2)

Auto-updated Jun 9, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

NRSS RSS Reader 0.3.9-1 Stack Buffer Overflow | Advisories | VulnCheck

https://www.vulncheck.com/advisories/nrss-rss-reader-1-stack-buffer-overflow
generic🟡 PoC Available

NRSS Reader 0.3.9 - Local Stack Overflow - Linux local Exploit

https://www.exploit-db.com/exploits/39810

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 4× in last 7d / 19× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 169 total refreshes for this CVE.

  1. 2026-09-15 03:05 UTCEPSS rescore
  2. 2026-09-13 16:41 UTCEPSS rescore
  3. 2026-09-12 14:55 UTCEPSS rescore
  4. 2026-09-10 09:26 UTCEPSS rescore
  5. 2026-09-07 15:56 UTCEPSS rescore
  6. 2026-09-04 13:56 UTCEPSS rescore
  7. 2026-09-02 14:07 UTCEPSS rescore
  8. 2026-09-01 03:31 UTCEPSS rescore
  9. 2026-08-30 19:12 UTCEPSS rescore
  10. 2026-08-27 14:20 UTCEPSS rescore
  11. 2026-08-26 14:41 UTCEPSS rescore
  12. 2026-08-23 00:13 UTCEPSS rescore
  13. 2026-08-21 23:44 UTCEPSS rescore
  14. 2026-08-19 16:59 UTCEPSS rescore
  15. 2026-08-18 13:43 UTCEPSS rescore
  16. 2026-08-17 13:42 UTCEPSS rescore
  17. 2026-08-16 14:51 UTCEPSS rescore
  18. 2026-08-16 09:54 UTCEG score recompute
  19. 2026-08-16 09:54 UTCGHSA enrichment
  20. 2026-08-16 02:09 UTCEPSS rescore
  21. 2026-08-15 01:25 UTCEPSS rescore
  22. 2026-08-14 19:10 UTCGHSA enrichment
  23. 2026-08-14 06:13 UTCEG score recompute
  24. 2026-08-14 06:13 UTCGHSA enrichment
  25. 2026-08-12 20:33 UTCEG score recompute
Show 75 more
  1. 2026-08-12 20:33 UTCGHSA enrichment
  2. 2026-08-12 13:46 UTCEPSS rescore
  3. 2026-08-11 20:42 UTCEG score recompute
  4. 2026-08-11 20:42 UTCGHSA enrichment
  5. 2026-08-11 13:36 UTCEPSS rescore
  6. 2026-08-11 03:43 UTCEG score recompute
  7. 2026-08-11 03:43 UTCGHSA enrichment
  8. 2026-08-10 05:58 UTCGHSA enrichment
  9. 2026-08-09 17:53 UTCEG score recompute
  10. 2026-08-09 17:53 UTCGHSA enrichment
  11. 2026-08-09 13:42 UTCEPSS rescore
  12. 2026-08-09 05:47 UTCEG score recompute
  13. 2026-08-09 05:47 UTCGHSA enrichment
  14. 2026-08-08 16:32 UTCEPSS rescore
  15. 2026-08-08 04:19 UTCEG score recompute
  16. 2026-08-08 04:19 UTCGHSA enrichment
  17. 2026-08-07 16:14 UTCGHSA enrichment
  18. 2026-08-06 18:32 UTCEG score recompute
  19. 2026-08-06 18:32 UTCGHSA enrichment
  20. 2026-08-06 13:42 UTCEPSS rescore
  21. 2026-08-06 00:43 UTCEG score recompute
  22. 2026-08-06 00:43 UTCGHSA enrichment
  23. 2026-08-05 19:12 UTCEPSS rescore
  24. 2026-08-04 15:04 UTCEPSS rescore
  25. 2026-08-04 10:32 UTCEPSS rescore
  26. 2026-08-03 23:03 UTCEG score recompute
  27. 2026-08-03 23:03 UTCGHSA enrichment
  28. 2026-08-02 15:08 UTCEG score recompute
  29. 2026-08-02 15:08 UTCGHSA enrichment
  30. 2026-08-02 02:22 UTCEPSS rescore
  31. 2026-08-01 04:11 UTCEPSS rescore
  32. 2026-07-30 16:23 UTCEPSS rescore
  33. 2026-07-30 01:26 UTCEPSS rescore
  34. 2026-07-28 15:31 UTCEPSS rescore
  35. 2026-07-26 14:50 UTCEPSS rescore
  36. 2026-07-25 14:13 UTCEPSS rescore
  37. 2026-07-23 14:14 UTCEPSS rescore
  38. 2026-07-23 01:22 UTCEG score recompute
  39. 2026-07-22 22:01 UTCEG score recompute
  40. 2026-07-22 14:04 UTCEPSS rescore
  41. 2026-07-21 15:21 UTCEPSS rescore
  42. 2026-07-21 15:21 UTCEPSS rescore
  43. 2026-07-20 17:03 UTCEPSS rescore
  44. 2026-07-19 14:27 UTCEPSS rescore
  45. 2026-07-19 02:26 UTCEPSS rescore
  46. 2026-07-19 02:26 UTCEPSS rescore
  47. 2026-07-18 10:00 UTCEPSS rescore
  48. 2026-07-18 10:00 UTCEPSS rescore
  49. 2026-07-16 16:59 UTCEPSS rescore
  50. 2026-07-16 16:59 UTCEPSS rescore
  51. 2026-07-15 16:54 UTCEPSS rescore
  52. 2026-07-15 16:54 UTCEPSS rescore
  53. 2026-07-15 01:56 UTCEPSS rescore
  54. 2026-07-15 01:56 UTCEPSS rescore
  55. 2026-07-13 22:26 UTCEPSS rescore
  56. 2026-07-13 06:09 UTCEPSS rescore
  57. 2026-07-12 05:43 UTCEPSS rescore
  58. 2026-07-12 05:43 UTCEPSS rescore
  59. 2026-07-11 08:23 UTCEPSS rescore
  60. 2026-07-09 19:05 UTCEPSS rescore
  61. 2026-07-08 15:10 UTCEPSS rescore
  62. 2026-07-07 13:42 UTCEPSS rescore
  63. 2026-07-06 16:24 UTCEPSS rescore
  64. 2026-07-06 16:24 UTCEPSS rescore
  65. 2026-07-06 02:20 UTCEPSS rescore
  66. 2026-07-06 02:20 UTCEPSS rescore
  67. 2026-07-05 02:27 UTCEPSS rescore
  68. 2026-07-04 06:28 UTCEPSS rescore
  69. 2026-07-01 15:02 UTCEPSS rescore
  70. 2026-06-30 23:19 UTCEPSS rescore
  71. 2026-06-29 14:03 UTCEPSS rescore
  72. 2026-06-28 14:04 UTCEPSS rescore
  73. 2026-06-28 04:53 UTCEPSS rescore
  74. 2026-06-27 03:05 UTCEPSS rescore
  75. 2026-06-27 03:05 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2016-20043?
CVE-2016-20043 is a high vulnerability published on March 28, 2026. 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…
When was CVE-2016-20043 disclosed?
CVE-2016-20043 was first published in the National Vulnerability Database on March 28, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2016-20043 actively exploited?
CVE-2016-20043 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 89.6% of all scored CVEs.
What is the CVSS score of CVE-2016-20043?
CVE-2016-20043 has a CVSS v3 base score of 7.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 8.4.
How do I remediate CVE-2016-20043?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-20043, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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