Is CVE-2017-8779 in the CISA KEV catalog?

No. CVE-2017-8779 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-8779?

CVE-2017-8779 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2017-8779?

CVE-2017-8779 has an EPSS score of 81.92% (100th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-8779?

Upgrade libtirpc on debian 11 to 0.2.5-1.2 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2017-8779

HIGHEPSS 100th pctl

7.5

CVSS v3

NVD

Description

rpcbind through 0.2.4, LIBTIRPC through 1.0.1 and 1.0.2-rc through 1.0.2-rc3, and NTIRPC through 1.4.3 do not consider the maximum RPC data size during memory allocation for XDR strings, which allows remote attackers to cause a denial of service (memory consumption with no subsequent free) via a crafted UDP packet to port 111, aka rpcbomb.

CWE-770Allocation of Resources Without Limits or Throttling

How to fix

Remediation Available

libtirpcDebian

Fixed in:0.2.5-1.2CVE-2017-8779

libtirpcUbuntu

Fixed in:0.2.2-5ubuntu2.1USN-3759-1

Fixed in:0.2.5-1ubuntu0.1USN-3759-1

Fixed in:0.2.5-1.2ubuntu0.1USN-3759-1

libtirpc-devUbuntu

Fixed in:0.2.2-5ubuntu2.1USN-3759-1

Fixed in:0.2.5-1ubuntu0.1USN-3759-1

Fixed in:0.2.5-1.2ubuntu0.1USN-3759-1

libtirpc1Ubuntu

Fixed in:0.2.2-5ubuntu2.1USN-3759-1

Fixed in:0.2.5-1ubuntu0.1USN-3759-1

Fixed in:0.2.5-1.2ubuntu0.1USN-3759-1

rpcbindUbuntu

Fixed in:0.2.1-2ubuntu2.2+esm1USN-4986-2

Fixed in:0.2.3-0.2ubuntu0.16.04.1+esm1USN-4986-2

Fixed in:0.2.3-0.6ubuntu0.18.04.2USN-4986-1

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

81.92%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

References

Patch4

Third-Party Advisory2

Other references13

Related Vulnerabilities

Other CWE-770 (Allocation of Resources Without Limits or Throttling) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-50387	High	7.5	100%	-	Fix
CVE-2019-11478	Medium	5.3	95%	-	Fix
CVE-2019-11479	High	7.5	92%	-	Fix
CVE-2024-27316	High	7.5	91%	-	Fix
CVE-2022-30522	High	7.5	90%	-	Fix
CVE-2019-9515	High	7.5	88%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.