How severe is CVE-2026-34703?

CVE-2026-34703 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-34703 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-34703?

CVE-2026-34703 affects Adobe Indesign. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-34703?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-34703 have an EU (EUVD) identifier?

Yes. CVE-2026-34703 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35779.

When was CVE-2026-34703 published?

CVE-2026-34703 was published on 2026-06-09 and last updated on 2026-06-17.

CVE-2026-34703

CVE-2026-34703 is a medium-severity vulnerability in Adobe Indesign with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-35779
Weakness: CWE-476
Affected product: Adobe Indesign
Published: 2026-06-09
Last modified: 2026-06-17

Description

InDesign Desktop versions 21.3, 20.5.3 and earlier are affected by a NULL Pointer Dereference vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service condition. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Frequently asked questions

What is CVE-2026-34703?: InDesign Desktop versions 21.3, 20.5.3 and earlier are affected by a NULL Pointer Dereference vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service condition. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
How severe is CVE-2026-34703?: CVE-2026-34703 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-34703 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-34703?: CVE-2026-34703 affects Adobe Indesign. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-34703?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-34703 have an EU (EUVD) identifier?: Yes. CVE-2026-34703 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35779.
When was CVE-2026-34703 published?: CVE-2026-34703 was published on 2026-06-09 and last updated on 2026-06-17.

References

https://helpx.adobe.com/security/products/indesign/apsb26-58.html

Affected products (1)

cpe:2.3:a:adobe:indesign:*:*:*:*:*:*:*:*

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