The xdr_bytes and xdr_string functions in the GNU C Library (aka glibc or libc6) 2.25 mishandle failures of buffer deserialization, which allows remote attackers to cause a denial of service (virtual memory allocation, or memory consumption if an overcommit setting is not used) via a crafted UDP packet to port 111, a related issue to CVE-2017-8779. NOTE: [Information provided from upstream and references
CVE-2017-8804
HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-05-13. NVD baseline CVSS 7.5; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 8%CVSS: 7.5Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EPSS
- 93.9%
- KEV
- Not listed
Published
May 7, 2017
Last Modified
May 13, 2026
References (22)
- cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2018-02/msg00026.html
- cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2018-02/msg00039.html
- cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2018-02/msg00049.html
- cve@mitrehttp://www.openwall.com/lists/oss-security/2017/05/05/2
- cve@mitrehttp://www.securityfocus.com/bid/98339
- cve@mitrehttps://bugzilla.suse.com/show_bug.cgi?id=1037559#c7
- cve@mitrehttps://seclists.org/oss-sec/2017/q2/228
- cve@mitrehttps://sourceware.org/bugzilla/show_bug.cgi?id=21461
- cve@mitrehttps://sourceware.org/legacy-ml/libc-alpha/2017-05/msg00128.html
- cve@mitrehttps://sourceware.org/legacy-ml/libc-alpha/2017-05/msg00129.html
- cve@mitrehttps://sourceware.org/ml/libc-alpha/2017-05/msg00105.html
- af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00026.html
- af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00039.html
- af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00049.html
- af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2017/05/05/2
Data Freshness Timeline
(refreshed 12× in last 7d / 44× 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.
- 2026-07-07 13:42 UTCEPSS rescore
- 2026-07-06 16:24 UTCEPSS rescore
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- 2026-06-25 13:47 UTCEPSS rescore
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- 2026-06-23 21:30 UTCEPSS rescore
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- 2026-06-23 06:00 UTCOSV refresh
- 2026-06-22 14:23 UTCEPSS rescore
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- 2026-06-21 01:57 UTCEPSS rescore
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- 2026-06-18 17:50 UTCEPSS rescore
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- 2026-06-14 23:14 UTCEPSS rescore
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- 2026-06-13 22:58 UTCEPSS rescore
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- 2026-06-12 23:09 UTCEPSS rescore
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- 2026-06-11 13:57 UTCEPSS rescore
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- 2026-06-10 13:19 UTCEPSS rescore
- 2026-06-08 14:14 UTCEPSS rescore
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- 2026-06-07 15:22 UTCEPSS rescore
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- 2026-06-06 03:52 UTCOSV refresh
- 2026-06-05 22:44 UTCEPSS rescore
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- 2026-06-05 06:08 UTCEPSS rescore
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- 2026-05-31 22:28 UTCEPSS rescore
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- 2026-05-29 13:41 UTCEPSS rescore
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- 2026-05-27 13:38 UTCEPSS rescore
- 2026-05-27 13:38 UTCEPSS rescore
- 2026-05-26 13:42 UTCEPSS rescore
- 2026-05-22 13:35 UTCEG score recompute
- 2026-05-22 13:35 UTCGHSA enrichment
- 2026-05-21 22:40 UTCEPSS rescore
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- 2026-05-20 22:37 UTCEPSS rescore
- 2026-05-20 22:37 UTCEPSS rescore
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- 2026-05-20 11:21 UTCEPSS rescore
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- 2026-05-18 21:30 UTCEPSS rescore
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- 2026-05-18 21:30 UTCEPSS rescore
Frequently asked(5)
What is CVE-2017-8804?
CVE-2017-8804 is a high vulnerability published on May 7, 2017. The xdrbytes and xdrstring functions in the GNU C Library (aka glibc or libc6) 2.25 mishandle failures of buffer deserialization, which allows remote attackers to cause a denial of service (virtual memory allocation, or memory consumption if an overcommit setting is not used) via a crafted UDP…
When was CVE-2017-8804 disclosed?
CVE-2017-8804 was first published in the National Vulnerability Database on May 7, 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-2017-8804 actively exploited?
CVE-2017-8804 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 93.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-8804?
CVE-2017-8804 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2017-8804?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-8804, 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.
Dependency Blast Radius
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