CVE-2025-59023VulnerabilityPublished 22 Oct 2025Updated 29 Oct 2025

Bundesamt für Sicherheit in der Informationstechnik Debian · PowerDNS Recursor: Mehrere Schwachstellen ermöglichen Manipulation von Dateien

Affects Bundesamt für Sicherheit in der Informationstechnik DebianSource GCVE Database

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Authoritative record:CVE-2025-59023· High 8.2

Not known to be exploited · CVSS 8.2 High · fixed in Debian package updates : patch Debian pdns-recursor soon.

Data as of 29 Oct 2026, 22:52 UTC

CVSS 3.1 base score

8.2High

How severe the flaw is on the 0–10 CVSS scale.

Patch: Available – fixed in 5.3.1, 5.2.6, 5.1.8

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: High
Availability: Low

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: None: There is no loss of confidentiality within the impacted component.
Integrity: High: There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component.
Availability: Low: Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the impacted component are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 9 Feb 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

bundesamt-f-r-sicherheit-in-de

What to do

Upgrade Recursor and pdns-recursor to 5.3.1, 5.2.6 or 5.1.8.

Affected software

Product	Affected	Fixed in
PowerDNSRecursor	Affected >=5.3.0 <5.3.1	Fixed in 5.3.1
PowerDNSRecursor	Affected >=5.2.0 <5.2.6	Fixed in 5.2.6
PowerDNSRecursor	Affected >=5.1.0 <5.1.8	Fixed in 5.1.8
GitHubpdns-recursor`pkg:github/pdns-recursor`Other threats	Affected >=5.3.0 <5.3.1 >=5.2.0 <5.2.6 >=5.1.0 <5.1.8	Fixed in 5.3.1 5.2.6 5.1.8

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

Multiple vulnerabilities in PowerDNS Recursor allow manipulation of files. PowerDNS Recursor is a DNS server software that resolves domain names to IP addresses and often caches these mappings locally to reduce excessive queries. The vulnerabilities could potentially be exploited to manipulate files on affected systems.

Impact

The impact involves the potential for attackers to manipulate files via vulnerabilities in PowerDNS Recursor. Specific consequences or exploitation details are not provided, and no known exploits are reported in the wild. The lack of detailed impact information limits precise assessment.

Summary

The reported security issue involves several vulnerabilities in PowerDNS Recursor, a DNS server component responsible for translating domain names into IP addresses and caching these mappings locally. These vulnerabilities enable attackers to manipulate files, potentially impacting the integrity of the DNS cache or other files managed by the service. The advisory originates from the German Federal Office for Information Security (Bundesamt für Sicherheit in der Informationstechnik). No detailed technical data, CVSS score, or affected versions are provided in the available information.

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What to do

Affected software

Description

AI analysisMachine-generated, updated 29 Oct 2026, 22:52 UTC

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