Is CVE-2018-1046 in the CISA KEV catalog?

No. CVE-2018-1046 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-1046?

CVE-2018-1046 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2018-1046?

CVE-2018-1046 has an EPSS score of 1.41% (69th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-1046?

Upgrade pdns on debian 11 to 4.1.2-1 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2018-1046

HIGH

7.8

CVSS v3

NVD

Description

pdns before version 4.1.2 is vulnerable to a buffer overflow in dnsreplay. In the dnsreplay tool provided with PowerDNS Authoritative, replaying a specially crafted PCAP file can trigger a stack-based buffer overflow, leading to a crash and potentially arbitrary code execution. This buffer overflow only occurs when the -ecs-stamp option of dnsreplay is used.

CWE-121Stack-based Buffer Overflow CWE-787Out-of-bounds Write

How to fix

Remediation Available

pdnsDebian

Fixed in:4.1.2-1CVE-2018-1046

pdnsUbuntu

Fixed in:4.0.0~alpha2-3ubuntu0.1~esm1USN-7203-1

Fixed in:4.1.1-1ubuntu0.1~esm1USN-7203-1

Fixed in:4.2.1-1ubuntu0.1~esm1USN-7203-1

Fixed in:4.5.3-1ubuntu0.1~esm1USN-7203-1

pdns-recursorUbuntu

Fixed in:4.0.0~alpha2-2ubuntu0.1+esm1USN-7203-1

Fixed in:4.1.1-2ubuntu0.1~esm1USN-7203-1

Fixed in:4.2.1-1ubuntu0.1~esm1USN-7203-1

Fixed in:4.6.0-1ubuntu1+esm1USN-7203-1

pdns-serverUbuntu

Fixed in:4.0.0~alpha2-3ubuntu0.1~esm1USN-7203-1

Fixed in:4.1.1-1ubuntu0.1~esm1USN-7203-1

Fixed in:4.2.1-1ubuntu0.1~esm1USN-7203-1

Fixed in:4.5.3-1ubuntu0.1~esm1USN-7203-1

pdns-toolsUbuntu

Fixed in:4.0.0~alpha2-3ubuntu0.1~esm1USN-7203-1

Fixed in:4.1.1-1ubuntu0.1~esm1USN-7203-1

Fixed in:4.2.1-1ubuntu0.1~esm1USN-7203-1

Fixed in:4.5.3-1ubuntu0.1~esm1USN-7203-1

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 VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploit Intelligence

1.41%probability of exploitation in 30 days

69thpercentile

Moderate risk: more likely to be exploited than 69% of all known CVEs.

References

Patch1

bugzilla.redhat.com

Related Vulnerabilities

Other CWE-121 (Stack-based Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2009-0927	High	8.8	97%	KEV	Fix
CVE-2020-10924	High	8.8	87%	-	-
CVE-2022-20705	Critical	10.0	80%	-	-

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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 2024-11-21.