CVE-2021-39857

Summary

Adobe Acrobat Reader DC add-on for Internet Explorer versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by an Information Disclosure vulnerability. An unauthenticated attacker could leverage this vulnerability to check for existence of local files. Exploitation of this issue requires user interaction in that a victim must visit an attacker controlled web page.

Affected Software

VendorProductVersion RangeStatus
AdobeAcrobat Readerunspecified <= DC 2021 Julyaffected
AdobeAcrobat Readerunspecified <= 20.0-Classic 2021 Julyaffected
AdobeAcrobat Readerunspecified <= 17.0-Classic 2021 Julyaffected
AdobeAcrobat Readerunspecified <= Noneaffected

Weaknesses

  • CWE-200: Information Exposure (CWE-200)

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References