CVE-2021-47137
Status: ModifiedCritical (9.8)—
Severity9.8Critical · CVSS 3.1
Exploitation probability0.60 %higher than 48% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitNot knownno public code found
In the Linux kernel, the following vulnerability has been resolved:
net: lantiq: fix memory corruption in RX ring
In a situation where memory allocation or dma mapping fails, an invalid address is programmed into the descriptor. This can lead to memory corruption. If the memory allocation fails, DMA should reuse the previous skb and mapping and drop the packet. This patch also increments rx drop counter.
CVSS
- Base score
- 9.8
- Version
- 3.1
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days
- 0.60 %
- Percentile among all scored CVEs
- 48
- Score date
- 10/21/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (1)
CWEs
- CWE-770
References
Show 8 references
- https://git.kernel.org/stable/c/46dd4abced3cb2c912916f4a5353e0927db0c4a2
- https://git.kernel.org/stable/c/5ac72351655f8b033a2935646f53b7465c903418
- https://git.kernel.org/stable/c/8bb1077448d43a871ed667520763e3b9f9b7975d
- https://git.kernel.org/stable/c/c7718ee96dbc2f9c5fc3b578abdf296dd44b9c20
- https://git.kernel.org/stable/c/46dd4abced3cb2c912916f4a5353e0927db0c4a2
- https://git.kernel.org/stable/c/5ac72351655f8b033a2935646f53b7465c903418
- https://git.kernel.org/stable/c/8bb1077448d43a871ed667520763e3b9f9b7975d
- https://git.kernel.org/stable/c/c7718ee96dbc2f9c5fc3b578abdf296dd44b9c20
Raw JSON (NVD)
Show
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