VulnerabilityPublished 17 Mar 2026

CVE-2025-66042: Canva Affinity · Out-of-bounds Read

Affects Canva AffinitySource CVE Database V5

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Not known to be exploited · CVSS 6.1 Medium.

Data as of 29 Oct 2026, 19:04 UTC

CVSS 3.1 base score

6.1Medium

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

EPSS: 0.2% chance of exploitation in 30 days – higher than 20% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

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

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

Attack Vector: Local: The vulnerable component is not bound to the network stack and the attacker’s path is via read/write/execute capabilities. Either: the attacker exploits the vulnerability by accessing the target system locally (e.g., keyboard, console), or remotely (e.g., SSH); or the attacker relies on User Interaction by another person to perform actions required to exploit the vulnerability (e.g., tricking a legitimate user into opening a malicious document).
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: Required: Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited.
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: High: There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact.
Integrity: None: There is no loss of integrity within 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 17 Mar 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.

What to do

Affected software

Product	Affected	Fixed in
CanvaAffinity	Affected =3.0.1.3808	Fixed in–

AI-suggested

Organizations should implement the following specific mitigations: 1) Restrict or monitor the use of EMF files within Canva Affinity, especially from untrusted or external sources. 2) Educate users about the risks of opening unsolicited or suspicious EMF files and enforce policies to verify file origins. 3) Employ application whitelisting or sandboxing techniques to limit the impact of potential exploitation. 4) Monitor vendor communications closely for patches or updates addressing this vulnerability and apply them promptly once available. 5) Use endpoint detection and response (EDR) tools to detect anomalous behavior related to file parsing or memory access within Canva Affinity. 6) Consider disabling or limiting EMF file support in Canva Affinity if feasible in the operational environment. 7) Conduct regular security awareness training emphasizing safe file handling practices. These measures go beyond generic advice by focusing on controlling the attack vector (EMF files) and user behavior, as well as proactive monitoring and containment.

Description

CVE-2025-66042 is an out-of-bounds read vulnerability in the EMF processing functionality of Canva Affinity version 3.0.1.3808. An attacker can exploit this by crafting a malicious EMF file that, when opened, causes the software to read memory outside of its intended bounds. This can lead to the disclosure of sensitive information from the affected system. The vulnerability requires local access and user interaction to open the malicious file but does not require privileges or authentication. The CVSS score is 6.1, indicating a medium severity with high confidentiality impact but no integrity or significant availability impact. No known exploits are currently in the wild, and no patches have been released yet.

Impact

The primary impact of CVE-2025-66042 is the potential unauthorized disclosure of sensitive information from the memory of systems running Canva Affinity 3.0.1.3808. This can lead to leakage of confidential user data, proprietary information, or application internals that could facilitate further attacks. Since the vulnerability requires user interaction to open a malicious EMF file, the risk is higher in environments where users frequently exchange or import EMF files, such as graphic design or marketing teams. The lack of integrity or availability impact means attackers cannot modify data or disrupt services directly through this flaw. However, the confidentiality breach could have compliance and privacy implications, especially for organizations handling sensitive or regulated data. The absence of known exploits reduces immediate risk, but the medium severity and potential for information leakage warrant prompt attention. Organizations worldwide using this software version are at risk, particularly those with high-value intellectual property or sensitive customer data.

CWE-125Out-of-bounds Read (opens in a new tab)
Base weaknessCWE Top 25 (2025): #8
The product reads data past the end, or before the beginning, of the intended buffer.
Implementation · Input Validation
Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
Architecture and Design · Language Selection
Use a language that provides appropriate memory abstractions.
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)
Attack patterns
Overread Buffers (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 25 Mar 2026, 01:07 UTC

WeaknessesCWE-125

Technical details

References

Community reviews

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