CVE-2024-45491VulnerabilityPublished 5 Nov 2024Updated 21 Aug 2026

Red Hat Security Advisory: xmlrpc-c security update

Affects Red Hat xmlrpc-cSource GCVE Database

Authoritative record:CVE-2024-45491· High 7.3

Not known to be exploited · CVSS 7.3 High : upgrade the Red Hat redhat/xmlrpc-c package to 8.10 soon.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 3.1 base score

7.3High

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

EPSS: 1.1% chance of exploitation in 30 days – higher than 66% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 8.10

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: Low
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: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact on 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 30 Aug 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 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.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, 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.

What to do

Upgrade the Red Hat redhat/xmlrpc-c package to 8.10.

Affected software

Product	Affected	Fixed in
Red Hatredhat/xmlrpc-c`pkg:rpm/redhat/xmlrpc-c`Other threats	Affected <8.10	Fixed in 8.10

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AI-suggested

A security update is available from Red Hat to address CVE-2024-45491. Users should apply the xmlrpc-c package update as described in Red Hat advisory RHSA-2024:8859 to remediate this vulnerability. For detailed instructions, refer to https://access.redhat.com/articles/11258. No additional mitigation steps are indicated by the vendor.

Description

A security update for the xmlrpc-c package in Red Hat Enterprise Linux 8 addresses an integer overflow or wraparound vulnerability in the libexpat library (CVE-2024-45491). This vulnerability has been rated with moderate severity by Red Hat Product Security. The xmlrpc-c package enables remote procedure calls over the Internet using XML and HTTP. A patch is available to remediate this issue.

Impact

The vulnerability involves an integer overflow or wraparound in libexpat used by xmlrpc-c, which could lead to unexpected behavior or potential security issues when processing XML data. Red Hat rates this issue as having moderate security impact. There are no known exploits in the wild at this time. The vulnerability affects multiple Red Hat Enterprise Linux 8 variants and architectures.

Summary

The xmlrpc-c package in Red Hat Enterprise Linux 8 was found to have a security vulnerability in the libexpat library involving an integer overflow or wraparound, tracked as CVE-2024-45491. This vulnerability could potentially affect the processing of XML data within the xmlrpc-c network protocol implementation. Red Hat has issued a security advisory (RHSA-2024:8859) providing an update that fixes this issue. The advisory rates the impact as moderate and recommends applying the update to affected systems. The vulnerability affects multiple architectures of Red Hat Enterprise Linux 8 and the CodeReady Linux Builder variants.

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Affected software

Description

AI analysisMachine-generated, updated 21 Aug 2026, 16:18 UTC

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