CVE-2024-20395: A vulnerability in the media retrieval functionality of Cisco Webex App could allow an unauthenticated, adjace

Routine

MEDIUM 6.4DOWNGRADE

CVE-2024-20395 is a medium-severity flaw (CVSS 6.4) affecting webex teams. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability in the media retrieval functionality of Cisco Webex App could allow an unauthenticated, adjacent attacker to gain access to sensitive session information. This vulnerability is due to insecure transmission of requests to backend services when the app accesses embedded media, such as images. An attacker could exploit this vulnerability by sending a message with embedded media that is stored on a messaging server to a targeted us

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.4 (Medium)
Attack vector	Adjacent network
Attack complexity	High
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 88%)
CISA exploited list	No
Weakness	CWE-523
Published	2024-07-17
Last modified	2026-06-17

Publisher (CNA): Cisco Systems, Inc. · Vendor: cisco

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-07-17 17:15 UTCPublished CVE record published
2026-06-17 07:06 UTCUpdated Record last modified

cisco webex teams DOWNGRADE

Affected: 3.0.13464.0 · 3.0.13538.0 · 3.0.13588.0 · 3.0.14154.0 · 3.0.14234.0 · 3.0.14375.0 · 3.0.14741.0 · 3.0.14866.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.0.13464.0

1. Check installed version

apt-cache policy webex-teams || rpm -q webex-teams || webex-teams --version

2. No fixed release: DOWNGRADE to a release before 3.0.13464.0 (Debian / Ubuntu)

apt-cache madison webex-teams sudo apt install webex-teams=<VERSION_BEFORE_3.0.13464.0> sudo apt-mark hold webex-teams

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list webex-teams sudo dnf downgrade webex-teams-<VERSION_BEFORE_3.0.13464.0> sudo dnf versionlock add webex-teams

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-20395?

webex teams: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-20395 being exploited?

CVE-2024-20395 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-20395 affect?

CVE-2024-20395 affects webex teams. Severity is medium (CVSS 6.4). A vulnerability in the media retrieval functionality of Cisco Webex App could allow an unauthenticated, adjacent attacker to gain access to sensitive session information. This vulnerability is due to insecure transmission of requests to

How urgent is CVE-2024-20395?

Priority 25/100. No elevated risk signals yet.

Software pages

Cisco vulnerabilities · Cisco Webex vulnerabilities

Related CVEs

CVE-2025-20236 HIGH 8.8 DOWNGRADE A vulnerability in the custom URL parser of Cisco Webex App could allow an unauthenticated, remote attacker to
CVE-2024-20396 MEDIUM 5.3 DOWNGRADE A vulnerability in the protocol handlers of Cisco Webex App could allow an unauthenticated, remote attacker to
CVE-2020-26067 MEDIUM 5.4 MITIGATE A vulnerability in the web-based interface of Cisco Webex Teams could allow an authenticated, remote atta

References

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