CVE-2017-8312

CVE-2017-8312 is a medium-severity vulnerability in Videolan Vlc Media Player 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-125.

Key facts

• Severity: Medium (CVSS 3.x base score 5.5)
• CVSS v2: 4.3
• EPSS exploit prediction: 1% (68th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-125
• Affected product: Videolan Vlc Media Player
• Published: 2017-05-23
• Last modified: 2026-06-17

Description

Heap out-of-bound read in ParseJSS in VideoLAN VLC due to missing check of string length allows attackers to read heap uninitialized data via a crafted subtitles file.

Frequently asked questions

What is CVE-2017-8312?

Heap out-of-bound read in ParseJSS in VideoLAN VLC due to missing check of string length allows attackers to read heap uninitialized data via a crafted subtitles file.

How severe is CVE-2017-8312?

CVE-2017-8312 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 high, integrity none, and availability none.

Is CVE-2017-8312 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-8312?

CVE-2017-8312 primarily affects Videolan Vlc Media Player. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-8312?

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

When was CVE-2017-8312 published?

CVE-2017-8312 was published on 2017-05-23 and last updated on 2026-06-17.

References

• http://git.videolan.org/?p=vlc.git%3Ba=blobdiff%3Bf=modules/demux/subtitle.c%3Bh=5e4fcdb7f25b2819f5441156c7c0ea2a7d112ca3%3Bhp=2a75fbfb7c3f56b24b2e4498bbb8fe0aa2575974%3Bhb=611398fc8d32f3fe4331f60b220c52ba3557beaa%3Bhpb=075bc7169b05b004fa0250e4a4ce5516b05487a9
• http://www.debian.org/security/2017/dsa-3899
• http://www.securityfocus.com/bid/98631
• https://security.gentoo.org/glsa/201707-10

Affected products (2)

• cpe:2.3:a:videolan:vlc_media_player:*:*:*:*:*:*:*:*
• cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

More vulnerabilities in Videolan Vlc Media Player

• CVE-2008-0296 — Critical (CVSS 10.0): Heap-based buffer overflow in the libaccess_realrtsp plugin in VideoLAN VLC Media Player 0.8.6d and earlier on Windows…
• CVE-2023-47359 — Critical (CVSS 9.8): Videolan VLC prior to version 3.0.20 contains an incorrect offset read that leads to a Heap-Based Buffer Overflow in…
• CVE-2019-13962 — Critical (CVSS 9.8): lavc_CopyPicture in modules/codec/avcodec/video.c in VideoLAN VLC media player through 3.0.7 has a heap-based buffer…
• CVE-2019-12874 — Critical (CVSS 9.8): An issue was discovered in zlib_decompress_extra in modules/demux/mkv/util.cpp in VideoLAN VLC media player 3.x through…
• CVE-2017-10699 — Critical (CVSS 9.8): avcodec 2.2.x, as used in VideoLAN VLC media player 2.2.7-x before 2017-06-29, allows out-of-bounds heap memory write…
• CVE-2016-5108 — Critical (CVSS 9.8): Buffer overflow in the DecodeAdpcmImaQT function in modules/codec/adpcm.c in VideoLAN VLC media player before 2.2.4…

All CVEs affecting Videolan Vlc Media Player →

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

• CVE-2026-24826 — Critical (CVSS 10.0): Out-of-bounds Write, Divide By Zero, NULL Pointer Dereference, Use of Uninitialized Resource, Out-of-bounds Read,…
• CVE-2024-22004 — Critical (CVSS 10.0): Due to length check, an attacker with privilege access on a Linux Nonsecure operating system can trigger a…
• 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…

Browse all CWE-125 (Out-of-bounds Read) vulnerabilities →