本頁列出影響 webmproject libwebp 的已公開 CVE 漏洞（透過 NVD CPE 關聯）。每列包含嚴重程度評分、摘要與發布日期，便於識別與分析安全議題。
| CVE | 摘要 | 來源 | 最高 CVSS | EPSS % | 公開時間 | 更新時間 |
|---|---|---|---|---|---|---|
| CVE-2023-4863 KEV | Heap buffer overflow in libwebp in Google Chrome prior to 116.0.5845.187 and libwebp 1.3.2 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: Critical) | [email protected] | 8.8 | 93.30% | 2023-09-12 | 2025-10-24 |
| CVE-2023-1999 | There exists a use after free/double free in libwebp. An attacker can use the ApplyFiltersAndEncode() function and loop through to free best.bw and assign best = trial pointer. The second loop will then return 0 because of an Out of memory error in VP8 encoder, the pointer is still assigned to trial and the AddressSanitizer will attempt a double free. | [email protected] | 5.3 | 0.36% | 2023-06-20 | 2025-02-13 |
| CVE-2020-36332 | A flaw was found in libwebp in versions before 1.0.1. When reading a file libwebp allocates an excessive amount of memory. The highest threat from this vulnerability is to the service availability. | [email protected] | 7.5 | 0.82% | 2021-05-21 | 2024-11-21 |
| CVE-2020-36331 | A flaw was found in libwebp in versions before 1.0.1. An out-of-bounds read was found in function ChunkAssignData. The highest threat from this vulnerability is to data confidentiality and to the service availability. | [email protected] | 9.1 | 0.41% | 2021-05-21 | 2024-11-21 |
| CVE-2020-36330 | A flaw was found in libwebp in versions before 1.0.1. An out-of-bounds read was found in function ChunkVerifyAndAssign. The highest threat from this vulnerability is to data confidentiality and to the service availability. | [email protected] | 9.1 | 0.40% | 2021-05-21 | 2024-11-21 |
| CVE-2020-36329 | A flaw was found in libwebp in versions before 1.0.1. A use-after-free was found due to a thread being killed too early. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. | [email protected] | 9.8 | 0.50% | 2021-05-21 | 2024-11-21 |
| CVE-2020-36328 | A flaw was found in libwebp in versions before 1.0.1. A heap-based buffer overflow in function WebPDecodeRGBInto is possible due to an invalid check for buffer size. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. | [email protected] | 9.8 | 0.53% | 2021-05-21 | 2024-11-21 |
| CVE-2018-25014 | A use of uninitialized value was found in libwebp in versions before 1.0.1 in ReadSymbol(). | [email protected] | 9.8 | 0.44% | 2021-05-21 | 2024-11-21 |
| CVE-2018-25013 | A heap-based buffer overflow was found in libwebp in versions before 1.0.1 in ShiftBytes(). | [email protected] | 9.1 | 0.57% | 2021-05-21 | 2024-11-21 |
| CVE-2018-25012 | A heap-based buffer overflow was found in libwebp in versions before 1.0.1 in GetLE24(). | [email protected] | 9.1 | 0.57% | 2021-05-21 | 2024-11-21 |
| CVE-2018-25011 | A heap-based buffer overflow was found in libwebp in versions before 1.0.1 in PutLE16(). | [email protected] | 9.8 | 0.38% | 2021-05-21 | 2024-11-21 |
| CVE-2018-25010 | A heap-based buffer overflow was found in libwebp in versions before 1.0.1 in ApplyFilter(). | [email protected] | 9.1 | 0.51% | 2021-05-21 | 2024-11-21 |
| CVE-2018-25009 | A heap-based buffer overflow was found in libwebp in versions before 1.0.1 in GetLE16(). | [email protected] | 9.1 | 0.45% | 2021-05-21 | 2024-11-21 |
| CVE-2016-9969 | In libwebp 0.5.1, there is a double free bug in libwebpmux. | [email protected] | 7.5 | 0.21% | 2019-05-23 | 2024-11-21 |
| CVE-2016-9085 | Multiple integer overflows in libwebp allows attackers to have unspecified impact via unknown vectors. | [email protected] | 3.3 | 0.07% | 2017-02-03 | 2026-05-13 |