How severe is CVE-2020-9663?

CVE-2020-9663 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2020-9663 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-9663?

CVE-2020-9663 affects Adobe Adobe Reader. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-9663?

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

When was CVE-2020-9663 published?

CVE-2020-9663 was published on 2020-07-22 and last updated on 2026-06-17.

CVE-2020-9663

CVE-2020-9663 is a medium-severity vulnerability in Adobe Adobe Reader with a CVSS 3.x base score of 5.3. 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-22.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Adobe Adobe Reader
Published: 2020-07-22
Last modified: 2026-06-17

Description

Adobe Reader Mobile versions 20.0.1 and earlier have a directory traversal vulnerability. Successful exploitation could lead to information disclosure.

Frequently asked questions

What is CVE-2020-9663?: Adobe Reader Mobile versions 20.0.1 and earlier have a directory traversal vulnerability. Successful exploitation could lead to information disclosure.
How severe is CVE-2020-9663?: CVE-2020-9663 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2020-9663 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-9663?: CVE-2020-9663 affects Adobe Adobe Reader. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-9663?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-9663 published?: CVE-2020-9663 was published on 2020-07-22 and last updated on 2026-06-17.

References

https://helpx.adobe.com/security/products/reader-mobile/apsb20-50.html

Affected products (1)

cpe:2.3:a:adobe:adobe_reader:*:*:*:*:*:android:*:*

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