彙總 dhcpcd_project 相關全部產品的 CVE 與安全漏洞情報，包括 CVSS、EPSS、公開時間與漏洞情報資料。
歷史漏洞主要涉及 緩衝區溢位與記憶體損壞 等問題，部分漏洞可能導致 記憶體損壞，並影響 生產負載與軟體部署 相關場景。
相關漏洞資料主要來源於公開漏洞披露與安全公告，可用於評估歷史漏洞暴露面與修補優先順序。
| CVE | 摘要 | 來源 | 最高 CVSS | EPSS % | 公開時間 | 更新時間 |
|---|---|---|---|---|---|---|
| CVE-2026-56117 | dhcpcd through 10.3.2, fixed in commit 78ea09e, contains a heap use-after-free vulnerability in the control socket handling within src/control.c that allows local unprivileged attackers to trigger memory corruption when privilege separation is disabled. Attackers can connect to the control socket and send a privileged command such as -x, causing control_recvdata() to free the client object while the same READ+HANGUP event subsequently reaches control_hangup() with the stale pointer, resulting in | [email protected] | 5.7 | 0.09% | 2026-06-23 | 2026-06-27 |
| CVE-2026-56116 | dhcpcd through 10.3.2, fixed in commit 708b4a5, contains a memory leak vulnerability in the IPv6 Router Advertisement route information handling that allows an unauthenticated same-link attacker to cause denial of service by sending crafted Router Advertisements. Attackers can repeatedly send Router Advertisements containing Route Information options with a lifetime of zero, triggering unfreed allocations in routeinfo_findalloc() that cause linear memory exhaustion and eventual daemon crash. | [email protected] | 7.1 | 0.19% | 2026-06-23 | 2026-07-01 |
| CVE-2026-56114 | dhcpcd through 10.3.2, fixed in commit 2f00c7b, contains a one-byte stack out-of-bounds write vulnerability in dhcp6_makemessage() in src/dhcp6.c that allows unauthenticated same-link attackers to write beyond a fixed local buffer by serializing an oversized RFC6603 OPTION_PD_EXCLUDE option body. Attackers can send a crafted DHCPv6 ADVERTISE message containing an IA_PD IAPREFIX /0 with a valid OPTION_PD_EXCLUDE using an exclude prefix length of /121 through /128 to trigger the out-of-bounds writ | [email protected] | 6.0 | 0.18% | 2026-06-23 | 2026-06-27 |
| CVE-2026-56113 | dhcpcd through 10.3.2, fixed in commit 5733d3c, contains a heap use-after-free vulnerability that allows unauthenticated same-link attackers to crash the daemon by sending a crafted DHCPv6 RENEW reply with RFC6603 OPTION_PD_EXCLUDE and both preferred and valid lifetimes set to zero. Attackers acting as or impersonating a DHCPv6 server can trigger dhcp6_deprecatedele() to free a delegated child address while an outer TAILQ_FOREACH_SAFE iterator in dhcp6_deprecateaddrs() still holds the freed poin | [email protected] | 6.0 | 0.18% | 2026-06-23 | 2026-06-27 |
| CVE-2019-11766 | dhcp6.c in dhcpcd before 6.11.7 and 7.x before 7.2.2 has a buffer over-read in the D6_OPTION_PD_EXCLUDE feature. | [email protected] | 9.8 | 2.10% | 2019-05-05 | 2026-06-16 |
| CVE-2019-11579 | dhcp.c in dhcpcd before 7.2.1 contains a 1-byte read overflow with DHO_OPTSOVERLOADED. | [email protected] | 5.3 | 1.41% | 2019-04-28 | 2026-06-16 |
| CVE-2019-11578 | auth.c in dhcpcd before 7.2.1 allowed attackers to infer secrets by performing latency attacks. | [email protected] | 5.9 | 2.03% | 2019-04-28 | 2026-06-16 |
| CVE-2019-11577 | dhcpcd before 7.2.1 contains a buffer overflow in dhcp6_findna in dhcp6.c when reading NA/TA addresses. | [email protected] | 9.8 | 53.10% | 2019-04-28 | 2026-06-16 |
| CVE-2016-1504 | dhcpcd before 6.10.0 allows remote attackers to cause a denial of service (invalid read and crash) via vectors related to the option length. | [email protected] | 7.5 | 2.90% | 2017-02-07 | 2026-06-16 |
| CVE-2016-1503 | dhcpcd before 6.10.0, as used in Android 4.x before 4.4.4, 5.0.x before 5.0.2, 5.1.x before 5.1.1, and 6.x before 2016-04-01 and other products, mismanages option lengths, which allows remote attackers to execute arbitrary code or cause a denial of service (heap-based buffer overflow) via a malformed DHCP response, aka internal bug 26461634. | [email protected] | 9.8 | 6.34% | 2016-04-17 | 2026-06-16 |
| CVE-2012-6700 | The decode_search function in dhcp.c in dhcpcd 3.x does not properly free allocated memory, which allows remote DHCP servers to cause a denial of service via a crafted response. | [email protected] | 7.5 | 1.97% | 2016-04-11 | 2026-06-16 |
| CVE-2012-6699 | The decode_search function in dhcp.c in dhcpcd 3.x allows remote DHCP servers to cause a denial of service (out-of-bounds read) via a crafted response. | [email protected] | 7.5 | 1.97% | 2016-04-11 | 2026-06-16 |
| CVE-2012-6698 | The decode_search function in dhcp.c in dhcpcd 3.x allows remote DHCP servers to cause a denial of service (out-of-bounds write) via a crafted response. | [email protected] | 7.5 | 1.97% | 2016-04-11 | 2026-06-16 |
| CVE-2014-7913 | The print_option function in dhcp-common.c in dhcpcd through 6.9.1, as used in dhcp.c in dhcpcd 5.x in Android before 5.1 and other products, misinterprets the return value of the snprintf function, which allows remote DHCP servers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted message. | [email protected] | 6.8 | 1.84% | 2015-07-29 | 2026-06-16 |
| CVE-2014-7912 | The get_option function in dhcp.c in dhcpcd before 6.2.0, as used in dhcpcd 5.x in Android before 5.1 and other products, does not validate the relationship between length fields and the amount of data, which allows remote DHCP servers to execute arbitrary code or cause a denial of service (memory corruption) via a large length value of an option in a DHCPACK message. | [email protected] | 6.8 | 2.65% | 2015-07-29 | 2026-06-16 |
| CVE-2014-6060 | The get_option function in dhcpcd 4.0.0 through 6.x before 6.4.3 allows remote DHCP servers to cause a denial of service by resetting the DHO_OPTIONSOVERLOADED option in the (1) bootfile or (2) servername section, which triggers the option to be processed again. | [email protected] | 3.3 | 0.44% | 2014-09-04 | 2026-06-16 |