CVE-2017-8289

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-17. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 2%CVSS: 9.8Exploit: NoneExposed: 0

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

Stack-based buffer overflow in the ipv6_addr_from_str function in sys/net/network_layer/ipv6/addr/ipv6_addr_from_str.c in RIOT prior to 2017-04-25 allows local attackers, and potentially remote attackers, to cause a denial of service or possibly have unspecified other impact via a malformed IPv6 address.

CVSS v3
9.8
EG Score
9.8(medium)
EPSS
76.7%
KEV
Not listed

Published

April 27, 2017

Last Modified

May 13, 2026

Advisory Details (3)

Auto-updated Jun 24, 2026
⚠️ Active exploitation confirmed. Upstream fix merged — awaiting tagged release. Sources: github_pr.
github_pr

ipv6_addr: provide fix for off-by-x error [2017.04 backport]

Fix merged in RIOT-OS/RIOT PR #6962 on 2017-04-26 — awaiting tagged release

https://github.com/RIOT-OS/RIOT/pull/6962
github_pr

ipv6_addr: provide fix for off-by-x error

Fix merged in RIOT-OS/RIOT PR #6961 on 2017-04-26 — awaiting tagged release

https://github.com/RIOT-OS/RIOT/pull/6961
generic🔴 Active Exploitation

Stack Buffer Overflow - Potential Denial of Service · Issue #6840 · RIOT-OS/RIOT · GitHub

https://github.com/RIOT-OS/RIOT/issues/6840

Data Freshness Timeline

(refreshed 12× in last 7d / 46× 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 116 total refreshes for this CVE.

  1. 2026-07-07 13:42 UTCEPSS rescore
  2. 2026-07-06 16:24 UTCEPSS rescore
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  1. 2026-06-21 14:54 UTCEPSS rescore
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  4. 2026-06-19 22:06 UTCOSV refresh
  5. 2026-06-19 19:23 UTCEPSS rescore
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  35. 2026-05-31 01:25 UTCOSV refresh
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  70. 2026-05-20 10:10 UTCEG score recompute
  71. 2026-05-20 10:10 UTCGHSA enrichment
  72. 2026-05-20 06:19 UTCEG score recompute
  73. 2026-05-20 06:19 UTCGHSA enrichment
  74. 2026-05-20 02:28 UTCEG score recompute
  75. 2026-05-20 02:28 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2017-8289?
CVE-2017-8289 is a critical vulnerability published on April 27, 2017. Stack-based buffer overflow in the ipv6addrfromstr function in sys/net/networklayer/ipv6/addr/ipv6addrfrom_str.c in RIOT prior to 2017-04-25 allows local attackers, and potentially remote attackers, to cause a denial of service or possibly have unspecified other impact via a malformed IPv6 address.
When was CVE-2017-8289 disclosed?
CVE-2017-8289 was first published in the National Vulnerability Database on April 27, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-8289 actively exploited?
CVE-2017-8289 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 76.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-8289?
CVE-2017-8289 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2017-8289?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-8289, 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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