CVE-2024-41882VulnerabilityPublished 24 Dec 2024Updated 1 Oct 2025

CVE-2024-41882: Hanwha Vision XRN-420S · Stack-based Buffer Overflow

Affects Hanwha Vision XRN-420SSource CVE Database V5

Not known to be exploited · CVSS 6.9 Medium.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 4.0 base score

6.9Medium

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

EPSS: 0.8% chance of exploitation in 30 days – higher than 57% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: None
Privileges Required: High
User Interaction: None
Vulnerable system confidentiality: None
Vulnerable system integrity: None
Vulnerable system availability: High
Subsequent system confidentiality: None
Subsequent system integrity: None
Subsequent system availability: None

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

Attack Vector: Network: The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, 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: The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Attack Requirements: None: The successful attack does not depend on the deployment and execution conditions of the vulnerable system. The attacker can expect to be able to reach the vulnerability and execute the exploit under all or most instances of the vulnerability.
Privileges Required: High: The attacker requires privileges that provide significant (e.g., administrative) control over the vulnerable system allowing full access to the vulnerable system’s settings and files.
User Interaction: None: The vulnerable system can be exploited without interaction from any human user, other than the attacker.
Vulnerable system confidentiality: None: There is no loss of confidentiality within the Vulnerable System.
Vulnerable system integrity: None: There is no loss of integrity within the Vulnerable System.
Vulnerable system availability: High: There is a total loss of availability, resulting in the attacker being able to fully deny access to resources in the Vulnerable System; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the Vulnerable System (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable).
Subsequent system confidentiality: None: There is no loss of confidentiality within the Subsequent System or all confidentiality impact is constrained to the Vulnerable System.
Subsequent system integrity: None: There is no loss of integrity within the Subsequent System or all integrity impact is constrained to the Vulnerable System.
Subsequent system availability: None: There is no impact to availability within the Subsequent System or all availability impact is constrained to the Vulnerable System.

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 24 Dec 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 2026-10-26.

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 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

AI-suggested

European organizations should prioritize the following specific mitigation steps: 1) Immediately verify the firmware version of all Hanwha Vision XRN-420S devices and upgrade to the latest patched firmware released by the vendor to eliminate the vulnerability. 2) Restrict network access to NVR management interfaces by implementing network segmentation and firewall rules that limit access to trusted administrative hosts only. 3) Enforce strong authentication and access controls to prevent unauthorized users from obtaining the high privileges required to exploit the vulnerability. 4) Monitor network traffic and device logs for unusual or malformed URL requests that could indicate attempted exploitation. 5) Implement intrusion detection/prevention systems (IDS/IPS) with signatures or heuristics targeting buffer overflow attempts on NVR devices. 6) Conduct regular security audits and vulnerability assessments of physical security infrastructure to identify and remediate similar risks proactively. 7) Establish incident response procedures specific to physical security device compromise to minimize operational impact. These measures go beyond generic advice by focusing on access control hardening, network isolation, and active monitoring tailored to the NVR environment.

Description

Team ENVY, a Security Research TEAM has found a flaw that allows for a remote code execution on the NVR. An attacker can cause a stack overflow by entering large data into URL parameters, which will result in a system reboot. The manufacturer has released patch firmware for the flaw, please refer to the manufacturer's report for details and workarounds.

Impact

For European organizations, especially those relying on Hanwha Vision XRN-420S NVRs for physical security and surveillance, this vulnerability poses a significant risk. Successful exploitation could lead to denial of service through repeated device reboots, impairing video recording and live monitoring functions. In environments such as critical infrastructure, transportation hubs, government facilities, and large enterprises, such disruptions could degrade situational awareness and delay incident detection or response. If remote code execution is achieved, attackers could potentially manipulate recorded footage, disable security alerts, or use the compromised NVR as a foothold for lateral movement within the network. This risk is heightened in sectors with stringent security requirements and regulatory compliance obligations under GDPR and other frameworks. The medium severity rating suggests a moderate but non-negligible threat, particularly if attackers gain privileged access. The absence of known exploits in the wild currently limits immediate risk, but the availability of a public CVE and patch underscores the need for prompt remediation to prevent future exploitation.

CWE-121Stack-based Buffer Overflow (opens in a new tab)
Variant weaknessLikelihood of exploit: HighCWE Top 25 (2025): #14
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
Operation · Build and Compilation · Environment Hardening
Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index…
Architecture and Design
Use an abstraction library to abstract away risky APIs. Not a complete solution.
Implementation
Implement and perform bounds checking on input.
OWASP Cheat Sheets
XML Security (opens in a new tab)
Mass Assignment (opens in a new tab)
OWASP ASVS 4.0.3
V13.3.1 (opens in a new tab)
V5.1.4 (opens in a new tab)
V5.1.3 (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

hanwhavision.com/wp-content/uploads/2024/12/NVR-Vulnerability-Report-CVE-2024-4188241887.pdf (opens in a new tab)

Community reviews

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Exploitation evidence

What to do

Description

AI analysisMachine-generated, updated 4 Oct 2025, 10:33 UTC

WeaknessesCWE-121

Technical details

References

Community reviews

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