How severe is CVE-2018-4934?

CVE-2018-4934 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2018-4934 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 23% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-4934?

CVE-2018-4934 primarily affects Adobe Flash Player Desktop Runtime. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-4934?

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

When was CVE-2018-4934 published?

CVE-2018-4934 was published on 2018-05-19 and last updated on 2026-06-17.

CVE-2018-4934

CVE-2018-4934 is a medium-severity vulnerability in Adobe Flash Player Desktop Runtime with a CVSS 3.x base score of 6.5. Its EPSS exploit-prediction score of 23% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-125.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 23% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Adobe Flash Player Desktop Runtime
Published: 2018-05-19
Last modified: 2026-06-17

Description

Adobe Flash Player versions 29.0.0.113 and earlier have an exploitable out-of-bounds read vulnerability. Successful exploitation could lead to information disclosure.

Frequently asked questions

What is CVE-2018-4934?: Adobe Flash Player versions 29.0.0.113 and earlier have an exploitable out-of-bounds read vulnerability. Successful exploitation could lead to information disclosure.
How severe is CVE-2018-4934?: CVE-2018-4934 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2018-4934 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 23% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-4934?: CVE-2018-4934 primarily affects Adobe Flash Player Desktop Runtime. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-4934?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-4934 published?: CVE-2018-4934 was published on 2018-05-19 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:adobe:flash_player_desktop_runtime:*:*:*:*:*:*:*:*
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:chrome:*:*
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:edge:*:*
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:internet_explorer:*:*

More vulnerabilities in Adobe Flash Player Desktop Runtime

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Other CWE-125 (Out-of-bounds Read) vulnerabilities

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CVE-2021-41556 — Critical (CVSS 10.0): sqclass.cpp in Squirrel through 2.2.5 and 3.x through 3.1 allows an out-of-bounds read (in the core interpreter) that…
CVE-2021-21777 — Critical (CVSS 10.0): An information disclosure vulnerability exists in the Ethernet/IP UDP handler functionality of EIP Stack Group OpENer…
CVE-2017-14451 — Critical (CVSS 10.0): An exploitable out-of-bounds read vulnerability exists in libevm (Ethereum Virtual Machine) of CPP-Ethereum. A…
CVE-2013-0767 — Critical (CVSS 10.0): The nsSVGPathElement::GetPathLengthScale function in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and…

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